77848725 has 12 divisors (see below), whose sum is σ = 128710016. Its totient is φ = 41519280.

The previous prime is 77848723. The next prime is 77848747. The reversal of 77848725 is 52784877.

It is a happy number.

It is not a de Polignac number, because 77848725 - 2¹ = 77848723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77848723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518917 + ... + 519066.

Almost surely, 2^77848725 is an apocalyptic number.

77848725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77848725 is a deficient number, since it is larger than the sum of its proper divisors (50861291).

77848725 is a wasteful number, since it uses less digits than its factorization.

77848725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037996 (or 1037991 counting only the distinct ones).

The product of its digits is 878080, while the sum is 48.

The square root of 77848725 is about 8823.1924494482. The cubic root of 77848725 is about 426.9894729821.

It can be divided in two parts, 7784872 and 5, that added together give a palindrome (7784877).

The spelling of 77848725 in words is "seventy-seven million, eight hundred forty-eight thousand, seven hundred twenty-five".