72928467 has 6 divisors (see below), whose sum is σ = 105341132. Its totient is φ = 48618972.

The previous prime is 72928459. The next prime is 72928481. The reversal of 72928467 is 76482927.

It is not a de Polignac number, because 72928467 - 2³ = 72928459 is a prime.

It is a super-2 number, since 2×72928467² = 10637122597940178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72928267) 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 5 ways as a sum of consecutive naturals, for example, 4051573 + ... + 4051590.

Almost surely, 2^72928467 is an apocalyptic number.

72928467 is a deficient number, since it is larger than the sum of its proper divisors (32412665).

72928467 is a wasteful number, since it uses less digits than its factorization.

72928467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103169 (or 8103166 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 72928467 is about 8539.8165671166. The cubic root of 72928467 is about 417.7973633026.

The spelling of 72928467 in words is "seventy-two million, nine hundred twenty-eight thousand, four hundred sixty-seven".