7293636 has 72 divisors (see below), whose sum is σ = 21350784. Its totient is φ = 2056320.

The previous prime is 7293623. The next prime is 7293641. The reversal of 7293636 is 6363927.

7293636 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7293636² = 106394252200992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 7⁷ + 2 + 9³ + 3⁸ + 6³ + 3¹⁴ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 7293636.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25816 + ... + 26096.

Almost surely, 2^7293636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7293636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10675392).

7293636 is an abundant number, since it is smaller than the sum of its proper divisors (14057148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7293636 is a wasteful number, since it uses less digits than its factorization.

7293636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 396 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 7293636 is about 2700.6732493954. The cubic root of 7293636 is about 193.9313534713.

The spelling of 7293636 in words is "seven million, two hundred ninety-three thousand, six hundred thirty-six".