73263990 has 16 divisors (see below), whose sum is σ = 175833648. Its totient is φ = 19537056.

The previous prime is 73263979. The next prime is 73264001. The reversal of 73263990 is 9936237.

It is an interprime number because it is at equal distance from previous prime (73263979) and next prime (73264001).

It is a super-2 number, since 2×73263990² = 10735224461440200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221037 + ... + 1221096.

It is an arithmetic number, because the mean of its divisors is an integer number (10989603).

Almost surely, 2^73263990 is an apocalyptic number.

73263990 is an abundant number, since it is smaller than the sum of its proper divisors (102569658).

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

73263990 is a wasteful number, since it uses less digits than its factorization.

73263990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442143.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 73263990 is about 8559.4386498181. The cubic root of 73263990 is about 418.4371052365.

The spelling of 73263990 in words is "seventy-three million, two hundred sixty-three thousand, nine hundred ninety".