7640622 has 64 divisors (see below), whose sum is σ = 19526400. Its totient is φ = 2190240.

The previous prime is 7640621. The next prime is 7640681. The reversal of 7640622 is 2260467.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10948 + ... + 11624.

It is an arithmetic number, because the mean of its divisors is an integer number (305100).

Almost surely, 2^7640622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7640622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9763200).

7640622 is an abundant number, since it is smaller than the sum of its proper divisors (11885778).

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

7640622 is a wasteful number, since it uses less digits than its factorization.

7640622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 7640622 is about 2764.1675057782. The cubic root of 7640622 is about 196.9591848586.

The spelling of 7640622 in words is "seven million, six hundred forty thousand, six hundred twenty-two".