779413725 has 48 divisors (see below), whose sum is σ = 1507195200. Its totient is φ = 393802560.

The previous prime is 779413717. The next prime is 779413729. The reversal of 779413725 is 527314977.

It is not a de Polignac number, because 779413725 - 2³ = 779413717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779413729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17562 + ... + 43211.

It is an arithmetic number, because the mean of its divisors is an integer number (31399900).

Almost surely, 2^779413725 is an apocalyptic number.

779413725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

779413725 is a deficient number, since it is larger than the sum of its proper divisors (727781475).

779413725 is a wasteful number, since it uses less digits than its factorization.

779413725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60811 (or 60800 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 779413725 is about 27917.9821083115. The cubic root of 779413725 is about 920.2857197786.

The spelling of 779413725 in words is "seven hundred seventy-nine million, four hundred thirteen thousand, seven hundred twenty-five".