772272723 has 4 divisors (see below), whose sum is σ = 1029696968. Its totient is φ = 514848480.

The previous prime is 772272703. The next prime is 772272737. The reversal of 772272723 is 327272277.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 772272723 - 2⁶ = 772272659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772272703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128712118 + ... + 128712123.

It is an arithmetic number, because the mean of its divisors is an integer number (257424242).

Almost surely, 2^772272723 is an apocalyptic number.

772272723 is a deficient number, since it is larger than the sum of its proper divisors (257424245).

772272723 is a wasteful number, since it uses less digits than its factorization.

772272723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257424244.

The product of its digits is 115248, while the sum is 39.

The square root of 772272723 is about 27789.7953033123. The cubic root of 772272723 is about 917.4665344777.

The spelling of 772272723 in words is "seven hundred seventy-two million, two hundred seventy-two thousand, seven hundred twenty-three".