76473891 has 12 divisors (see below), whose sum is σ = 118959568. Its totient is φ = 47060784.

The previous prime is 76473889. The next prime is 76473893. The reversal of 76473891 is 19837467.

It is an interprime number because it is at equal distance from previous prime (76473889) and next prime (76473893).

It is not a de Polignac number, because 76473891 - 2¹ = 76473889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76473893) 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 11 ways as a sum of consecutive naturals, for example, 326695 + ... + 326928.

Almost surely, 2^76473891 is an apocalyptic number.

76473891 is a deficient number, since it is larger than the sum of its proper divisors (42485677).

76473891 is a wasteful number, since it uses less digits than its factorization.

76473891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653642 (or 653639 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 76473891 is about 8744.9351627099. The cubic root of 76473891 is about 424.4609377750.

The spelling of 76473891 in words is "seventy-six million, four hundred seventy-three thousand, eight hundred ninety-one".