83949725 has 12 divisors (see below), whose sum is σ = 105806100. Its totient is φ = 66057600.

The previous prime is 83949703. The next prime is 83949763. The reversal of 83949725 is 52794938.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3345241 + 80604484 = 1829^2 + 8978^2 .

It is not a de Polignac number, because 83949725 - 2¹⁰ = 83948701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83949725.

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, 26000 + ... + 29049.

It is an arithmetic number, because the mean of its divisors is an integer number (8817175).

Almost surely, 2^83949725 is an apocalyptic number.

It is an amenable number.

83949725 is a deficient number, since it is larger than the sum of its proper divisors (21856375).

83949725 is a wasteful number, since it uses less digits than its factorization.

83949725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55120 (or 55115 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 83949725 is about 9162.4082532924. The cubic root of 83949725 is about 437.8645234070.

The spelling of 83949725 in words is "eighty-three million, nine hundred forty-nine thousand, seven hundred twenty-five".