76473731 has 4 divisors (see below), whose sum is σ = 76602000. Its totient is φ = 76345464.

The previous prime is 76473721. The next prime is 76473791. The reversal of 76473731 is 13737467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13737467 = 619 ⋅22193.

It is a cyclic number.

It is not a de Polignac number, because 76473731 - 2²⁶ = 9364867 is a prime.

It is a super-2 number, since 2×76473731² = 11696463066120722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76473721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63236 + ... + 64433.

It is an arithmetic number, because the mean of its divisors is an integer number (19150500).

Almost surely, 2^76473731 is an apocalyptic number.

76473731 is a deficient number, since it is larger than the sum of its proper divisors (128269).

76473731 is a wasteful number, since it uses less digits than its factorization.

76473731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128268.

The product of its digits is 74088, while the sum is 38.

The square root of 76473731 is about 8744.9260145527. The cubic root of 76473731 is about 424.4606417533.

The spelling of 76473731 in words is "seventy-six million, four hundred seventy-three thousand, seven hundred thirty-one".