76031057 has 4 divisors (see below), whose sum is σ = 76168116. Its totient is φ = 75894000.

The previous prime is 76031047. The next prime is 76031099. The reversal of 76031057 is 75013067.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75013067 = 41 ⋅1829587.

It can be written as a sum of positive squares in 2 ways, for example, as 9461776 + 66569281 = 3076^2 + 8159^2 .

It is a cyclic number.

It is not a de Polignac number, because 76031057 - 2¹⁶ = 75965521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76031017) 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, 67694 + ... + 68807.

It is an arithmetic number, because the mean of its divisors is an integer number (19042029).

Almost surely, 2^76031057 is an apocalyptic number.

It is an amenable number.

76031057 is a deficient number, since it is larger than the sum of its proper divisors (137059).

76031057 is a wasteful number, since it uses less digits than its factorization.

76031057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137058.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 76031057 is about 8719.5789462565. The cubic root of 76031057 is about 423.6400488017.

The spelling of 76031057 in words is "seventy-six million, thirty-one thousand, fifty-seven".