75660957 has 6 divisors (see below), whose sum is σ = 109288062. Its totient is φ = 50440632.

The previous prime is 75660941. The next prime is 75660979. The reversal of 75660957 is 75906657.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41718681 + 33942276 = 6459^2 + 5826^2 .

It is not a de Polignac number, because 75660957 - 2⁴ = 75660941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75660917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4203378 + ... + 4203395.

It is an arithmetic number, because the mean of its divisors is an integer number (18214677).

Almost surely, 2^75660957 is an apocalyptic number.

It is an amenable number.

75660957 is a deficient number, since it is larger than the sum of its proper divisors (33627105).

75660957 is a wasteful number, since it uses less digits than its factorization.

75660957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8406779 (or 8406776 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

The square root of 75660957 is about 8698.3307019221. The cubic root of 75660957 is about 422.9515394746.

The spelling of 75660957 in words is "seventy-five million, six hundred sixty thousand, nine hundred fifty-seven".