70768057 has 4 divisors (see below), whose sum is σ = 70840036. Its totient is φ = 70696080.

The previous prime is 70768039. The next prime is 70768069. The reversal of 70768057 is 75086707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75086707 = 167 ⋅449621.

It can be written as a sum of positive squares in 2 ways, for example, as 66520336 + 4247721 = 8156^2 + 2061^2 .

It is a cyclic number.

It is not a de Polignac number, because 70768057 - 2⁷ = 70767929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70768007) 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, 34494 + ... + 36487.

It is an arithmetic number, because the mean of its divisors is an integer number (17710009).

Almost surely, 2^70768057 is an apocalyptic number.

It is an amenable number.

70768057 is a deficient number, since it is larger than the sum of its proper divisors (71979).

70768057 is an equidigital number, since it uses as much as digits as its factorization.

70768057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71978.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 70768057 is about 8412.3752293868. The cubic root of 70768057 is about 413.6303752039.

The spelling of 70768057 in words is "seventy million, seven hundred sixty-eight thousand, fifty-seven".