76394413 has 4 divisors (see below), whose sum is σ = 80888220. Its totient is φ = 71900608.

The previous prime is 76394407. The next prime is 76394429. The reversal of 76394413 is 31449367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31449367 = 3299 ⋅9533.

It can be written as a sum of positive squares in 2 ways, for example, as 69856164 + 6538249 = 8358^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 76394413 - 2⁹ = 76393901 is a prime.

It is a super-2 number, since 2×76394413² = 11672212675229138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76394443) 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, 2246878 + ... + 2246911.

It is an arithmetic number, because the mean of its divisors is an integer number (20222055).

Almost surely, 2^76394413 is an apocalyptic number.

It is an amenable number.

76394413 is a deficient number, since it is larger than the sum of its proper divisors (4493807).

76394413 is a wasteful number, since it uses less digits than its factorization.

76394413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493806.

The product of its digits is 54432, while the sum is 37.

The square root of 76394413 is about 8740.3897510351. The cubic root of 76394413 is about 424.3138418204.

The spelling of 76394413 in words is "seventy-six million, three hundred ninety-four thousand, four hundred thirteen".