76416399 has 8 divisors (see below), whose sum is σ = 113209520. Its totient is φ = 50944248.

The previous prime is 76416383. The next prime is 76416409. The reversal of 76416399 is 99361467.

76416399 is a `hidden beast` number, since 7 + 6 + 4 + 1 + 639 + 9 = 666.

It is not a de Polignac number, because 76416399 - 2⁴ = 76416383 is a prime.

It is a super-2 number, since 2×76416399² = 11678932072254402, 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 (76416799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415092 + ... + 1415145.

It is an arithmetic number, because the mean of its divisors is an integer number (14151190).

Almost surely, 2^76416399 is an apocalyptic number.

76416399 is a deficient number, since it is larger than the sum of its proper divisors (36793121).

76416399 is a wasteful number, since it uses less digits than its factorization.

76416399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830246 (or 2830240 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 76416399 is about 8741.6473847897. The cubic root of 76416399 is about 424.3545431795.

The spelling of 76416399 in words is "seventy-six million, four hundred sixteen thousand, three hundred ninety-nine".