72750477 has 8 divisors (see below), whose sum is σ = 97907616. Its totient is φ = 48046832.

The previous prime is 72750443. The next prime is 72750493. The reversal of 72750477 is 77405727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72750477 - 2¹² = 72746381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72750427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112998 + ... + 113639.

It is an arithmetic number, because the mean of its divisors is an integer number (12238452).

Almost surely, 2^72750477 is an apocalyptic number.

It is an amenable number.

72750477 is a deficient number, since it is larger than the sum of its proper divisors (25157139).

72750477 is a wasteful number, since it uses less digits than its factorization.

72750477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226747.

The product of its (nonzero) digits is 96040, while the sum is 39.

The square root of 72750477 is about 8529.3890168054. The cubic root of 72750477 is about 417.4571928334.

The spelling of 72750477 in words is "seventy-two million, seven hundred fifty thousand, four hundred seventy-seven".