73890725 has 6 divisors (see below), whose sum is σ = 91624530. Its totient is φ = 59112560.

The previous prime is 73890709. The next prime is 73890757. The reversal of 73890725 is 52709837.

It can be written as a sum of positive squares in 3 ways, for example, as 51076 + 73839649 = 226^2 + 8593^2 .

It is not a de Polignac number, because 73890725 - 2⁴ = 73890709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1477790 + ... + 1477839.

It is an arithmetic number, because the mean of its divisors is an integer number (15270755).

Almost surely, 2^73890725 is an apocalyptic number.

It is an amenable number.

73890725 is a deficient number, since it is larger than the sum of its proper divisors (17733805).

73890725 is a wasteful number, since it uses less digits than its factorization.

73890725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955639 (or 2955634 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 73890725 is about 8595.9714401573. The cubic root of 73890725 is about 419.6268889740.

The spelling of 73890725 in words is "seventy-three million, eight hundred ninety thousand, seven hundred twenty-five".