75630990 has 32 divisors (see below), whose sum is σ = 185379840. Its totient is φ = 19738784.

The previous prime is 75630967. The next prime is 75631021. The reversal of 75630990 is 9903657.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25410 + ... + 28229.

It is an arithmetic number, because the mean of its divisors is an integer number (5793120).

Almost surely, 2^75630990 is an apocalyptic number.

75630990 is an abundant number, since it is smaller than the sum of its proper divisors (109748850).

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

75630990 is a wasteful number, since it uses less digits than its factorization.

75630990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53696.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 75630990 is about 8696.6079594288. The cubic root of 75630990 is about 422.8956926945.

The spelling of 75630990 in words is "seventy-five million, six hundred thirty thousand, nine hundred ninety".