73878651 has 48 divisors (see below), whose sum is σ = 140894208. Its totient is φ = 36115200.

The previous prime is 73878643. The next prime is 73878653. The reversal of 73878651 is 15687837.

It is not a de Polignac number, because 73878651 - 2³ = 73878643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73878597 and 73878606.

It is not an unprimeable number, because it can be changed into a prime (73878653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8646 + ... + 14916.

It is an arithmetic number, because the mean of its divisors is an integer number (2935296).

Almost surely, 2^73878651 is an apocalyptic number.

73878651 is a deficient number, since it is larger than the sum of its proper divisors (67015557).

73878651 is a wasteful number, since it uses less digits than its factorization.

73878651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312 (or 6309 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 73878651 is about 8595.2691057349. The cubic root of 73878651 is about 419.6040315673.

It can be divided in two parts, 738786 and 51, that added together give a palindrome (738837).

The spelling of 73878651 in words is "seventy-three million, eight hundred seventy-eight thousand, six hundred fifty-one".