75651604 has 48 divisors (see below), whose sum is σ = 157812480. Its totient is φ = 31046400.

The previous prime is 75651599. The next prime is 75651607. The reversal of 75651604 is 40615657.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 75651604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75651607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122304 + ... + 122920.

It is an arithmetic number, because the mean of its divisors is an integer number (3287760).

Almost surely, 2^75651604 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 75651604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78906240).

75651604 is an abundant number, since it is smaller than the sum of its proper divisors (82160876).

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

75651604 is a wasteful number, since it uses less digits than its factorization.

75651604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 75651604 is about 8697.7930534130. The cubic root of 75651604 is about 422.9341107200.

The spelling of 75651604 in words is "seventy-five million, six hundred fifty-one thousand, six hundred four".