72776395 has 8 divisors (see below), whose sum is σ = 87999120. Its totient is φ = 57776160.

The previous prime is 72776387. The next prime is 72776419. The reversal of 72776395 is 59367727.

It is a happy number.

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

It is not a de Polignac number, because 72776395 - 2³ = 72776387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54900 + ... + 56209.

It is an arithmetic number, because the mean of its divisors is an integer number (10999890).

Almost surely, 2^72776395 is an apocalyptic number.

72776395 is a deficient number, since it is larger than the sum of its proper divisors (15222725).

72776395 is a wasteful number, since it uses less digits than its factorization.

72776395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111245.

The product of its digits is 555660, while the sum is 46.

The square root of 72776395 is about 8530.9082165969. The cubic root of 72776395 is about 417.5067612181.

The spelling of 72776395 in words is "seventy-two million, seven hundred seventy-six thousand, three hundred ninety-five".