72677919 has 8 divisors (see below), whose sum is σ = 100029952. Its totient is φ = 46888920.

The previous prime is 72677903. The next prime is 72677921. The reversal of 72677919 is 91977627.

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

It is not a de Polignac number, because 72677919 - 2⁴ = 72677903 is a prime.

It is a super-2 number, since 2×72677919² = 10564159820341122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72677989) 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, 390649 + ... + 390834.

It is an arithmetic number, because the mean of its divisors is an integer number (12503744).

Almost surely, 2^72677919 is an apocalyptic number.

72677919 is a deficient number, since it is larger than the sum of its proper divisors (27352033).

72677919 is a wasteful number, since it uses less digits than its factorization.

72677919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781517.

The product of its digits is 333396, while the sum is 48.

The square root of 72677919 is about 8525.1345443928. The cubic root of 72677919 is about 417.3183624287.

The spelling of 72677919 in words is "seventy-two million, six hundred seventy-seven thousand, nine hundred nineteen".