72676451 has 4 divisors (see below), whose sum is σ = 73157904. Its totient is φ = 72195000.

The previous prime is 72676427. The next prime is 72676459. The reversal of 72676451 is 15467627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15467627 = 7 ⋅2209661.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72676451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72676459) 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, 240500 + ... + 240801.

It is an arithmetic number, because the mean of its divisors is an integer number (18289476).

Almost surely, 2^72676451 is an apocalyptic number.

72676451 is a deficient number, since it is larger than the sum of its proper divisors (481453).

72676451 is a wasteful number, since it uses less digits than its factorization.

72676451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481452.

The product of its digits is 70560, while the sum is 38.

The square root of 72676451 is about 8525.0484456101. The cubic root of 72676451 is about 417.3155526460.

It can be divided in two parts, 726 and 76451, that added together give a palindrome (77177).

The spelling of 72676451 in words is "seventy-two million, six hundred seventy-six thousand, four hundred fifty-one".