77941725 has 24 divisors (see below), whose sum is σ = 129863712. Its totient is φ = 41246400.

The previous prime is 77941723. The next prime is 77941769. The reversal of 77941725 is 52714977.

It is not a de Polignac number, because 77941725 - 2¹ = 77941723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77941723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5859 + ... + 13791.

It is an arithmetic number, because the mean of its divisors is an integer number (5410988).

Almost surely, 2^77941725 is an apocalyptic number.

77941725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77941725 is a deficient number, since it is larger than the sum of its proper divisors (51921987).

77941725 is a wasteful number, since it uses less digits than its factorization.

77941725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077 (or 8072 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 77941725 is about 8828.4610776737. The cubic root of 77941725 is about 427.1594360252.

The spelling of 77941725 in words is "seventy-seven million, nine hundred forty-one thousand, seven hundred twenty-five".