7752990 has 32 divisors (see below), whose sum is σ = 21265920. Its totient is φ = 1772064.

The previous prime is 7752989. The next prime is 7752991. The reversal of 7752990 is 992577.

It is an interprime number because it is at equal distance from previous prime (7752989) and next prime (7752991).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7752991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18250 + ... + 18669.

It is an arithmetic number, because the mean of its divisors is an integer number (664560).

Almost surely, 2^7752990 is an apocalyptic number.

7752990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7752990 is an abundant number, since it is smaller than the sum of its proper divisors (13512930).

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

7752990 is a wasteful number, since it uses less digits than its factorization.

7752990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36936.

The product of its (nonzero) digits is 39690, while the sum is 39.

The square root of 7752990 is about 2784.4191494816. The cubic root of 7752990 is about 197.9200268805.

The spelling of 7752990 in words is "seven million, seven hundred fifty-two thousand, nine hundred ninety".