77798325 has 48 divisors (see below), whose sum is σ = 141365952. Its totient is φ = 37440000.

The previous prime is 77798317. The next prime is 77798333. The reversal of 77798325 is 52389777.

It is an interprime number because it is at equal distance from previous prime (77798317) and next prime (77798333).

It is not a de Polignac number, because 77798325 - 2³ = 77798317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149065 + ... + 149585.

It is an arithmetic number, because the mean of its divisors is an integer number (2945124).

Almost surely, 2^77798325 is an apocalyptic number.

77798325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77798325 is a deficient number, since it is larger than the sum of its proper divisors (63567627).

77798325 is a wasteful number, since it uses less digits than its factorization.

77798325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 721 counting only the distinct ones).

The product of its digits is 740880, while the sum is 48.

The square root of 77798325 is about 8820.3358779584. The cubic root of 77798325 is about 426.8973074167.

The spelling of 77798325 in words is "seventy-seven million, seven hundred ninety-eight thousand, three hundred twenty-five".