76623313 has 4 divisors (see below), whose sum is σ = 82517428. Its totient is φ = 70729200.

The previous prime is 76623311. The next prime is 76623317. The reversal of 76623313 is 31332667.

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 25472209 + 51151104 = 5047^2 + 7152^2 .

It is a cyclic number.

It is not a de Polignac number, because 76623313 - 2¹ = 76623311 is a prime.

It is a super-2 number, since 2×76623313² = 11742264190191938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76623311) 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, 2947038 + ... + 2947063.

It is an arithmetic number, because the mean of its divisors is an integer number (20629357).

Almost surely, 2^76623313 is an apocalyptic number.

It is an amenable number.

76623313 is a deficient number, since it is larger than the sum of its proper divisors (5894115).

76623313 is a wasteful number, since it uses less digits than its factorization.

76623313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894114.

The product of its digits is 13608, while the sum is 31.

The square root of 76623313 is about 8753.4743387983. The cubic root of 76623313 is about 424.7372087060.

The spelling of 76623313 in words is "seventy-six million, six hundred twenty-three thousand, three hundred thirteen".