772613 has 4 divisors (see below), whose sum is σ = 797568. Its totient is φ = 747660.

The previous prime is 772591. The next prime is 772619. The reversal of 772613 is 316277.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316277 = 13 ⋅24329.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-772613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772619) 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, 12431 + ... + 12492.

It is an arithmetic number, because the mean of its divisors is an integer number (199392).

2⁷⁷²⁶¹³ is an apocalyptic number.

It is an amenable number.

772613 is a deficient number, since it is larger than the sum of its proper divisors (24955).

772613 is a wasteful number, since it uses less digits than its factorization.

772613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24954.

The product of its digits is 1764, while the sum is 26.

The square root of 772613 is about 878.9840726657. The cubic root of 772613 is about 91.7601265344.

The spelling of 772613 in words is "seven hundred seventy-two thousand, six hundred thirteen".