76372405 has 4 divisors (see below), whose sum is σ = 91646892. Its totient is φ = 61097920.

The previous prime is 76372393. The next prime is 76372411. The reversal of 76372405 is 50427367.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35117476 + 41254929 = 5926^2 + 6423^2 .

It is not a de Polignac number, because 76372405 - 2⁷ = 76372277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7637236 + ... + 7637245.

It is an arithmetic number, because the mean of its divisors is an integer number (22911723).

Almost surely, 2^76372405 is an apocalyptic number.

It is an amenable number.

76372405 is a deficient number, since it is larger than the sum of its proper divisors (15274487).

76372405 is a wasteful number, since it uses less digits than its factorization.

76372405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15274486.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 76372405 is about 8739.1306775903. The cubic root of 76372405 is about 424.2730919123.

The spelling of 76372405 in words is "seventy-six million, three hundred seventy-two thousand, four hundred five".