76625657 has 4 divisors (see below), whose sum is σ = 76675236. Its totient is φ = 76576080.

The previous prime is 76625641. The next prime is 76625663. The reversal of 76625657 is 75652667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75652667 = 41 ⋅1845187.

It can be written as a sum of positive squares in 2 ways, for example, as 17397241 + 59228416 = 4171^2 + 7696^2 .

It is a cyclic number.

It is not a de Polignac number, because 76625657 - 2⁴ = 76625641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76625677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22394 + ... + 25587.

It is an arithmetic number, because the mean of its divisors is an integer number (19168809).

Almost surely, 2^76625657 is an apocalyptic number.

It is an amenable number.

76625657 is a deficient number, since it is larger than the sum of its proper divisors (49579).

76625657 is a wasteful number, since it uses less digits than its factorization.

76625657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49578.

The product of its digits is 529200, while the sum is 44.

The square root of 76625657 is about 8753.6082274683. The cubic root of 76625657 is about 424.7415397372.

The spelling of 76625657 in words is "seventy-six million, six hundred twenty-five thousand, six hundred fifty-seven".