73977325 has 12 divisors (see below), whose sum is σ = 93970548. Its totient is φ = 57737600.

The previous prime is 73977307. The next prime is 73977331. The reversal of 73977325 is 52377937.

It can be written as a sum of positive squares in 6 ways, for example, as 27478564 + 46498761 = 5242^2 + 6819^2 .

It is a de Polignac number, because none of the positive numbers 2^k-73977325 is a prime.

It is a super-2 number, since 2×73977325² = 10945289228311250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35062 + ... + 37111.

It is an arithmetic number, because the mean of its divisors is an integer number (7830879).

Almost surely, 2^73977325 is an apocalyptic number.

It is an amenable number.

73977325 is a deficient number, since it is larger than the sum of its proper divisors (19993223).

73977325 is a wasteful number, since it uses less digits than its factorization.

73977325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72224 (or 72219 counting only the distinct ones).

The product of its digits is 277830, while the sum is 43.

The square root of 73977325 is about 8601.0072084611. The cubic root of 73977325 is about 419.7907593429.

The spelling of 73977325 in words is "seventy-three million, nine hundred seventy-seven thousand, three hundred twenty-five".