75690813 has 32 divisors (see below), whose sum is σ = 117849600. Its totient is φ = 42724800.

The previous prime is 75690803. The next prime is 75690827. The reversal of 75690813 is 31809657.

It is not a de Polignac number, because 75690813 - 2⁵ = 75690781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75690803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37258 + ... + 39236.

It is an arithmetic number, because the mean of its divisors is an integer number (3682800).

Almost surely, 2^75690813 is an apocalyptic number.

It is an amenable number.

75690813 is a deficient number, since it is larger than the sum of its proper divisors (42158787).

75690813 is a wasteful number, since it uses less digits than its factorization.

75690813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 75690813 is about 8700.0467240125. The cubic root of 75690813 is about 423.0071647317.

The spelling of 75690813 in words is "seventy-five million, six hundred ninety thousand, eight hundred thirteen".