83670957 has 12 divisors (see below), whose sum is σ = 127967580. Its totient is φ = 52499328.

The previous prime is 83670929. The next prime is 83671009. The reversal of 83670957 is 75907638.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50424201 + 33246756 = 7101^2 + 5766^2 .

It is not a de Polignac number, because 83670957 - 2⁶ = 83670893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83770957) 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, 273282 + ... + 273587.

It is an arithmetic number, because the mean of its divisors is an integer number (10663965).

Almost surely, 2^83670957 is an apocalyptic number.

It is an amenable number.

83670957 is a deficient number, since it is larger than the sum of its proper divisors (44296623).

83670957 is a wasteful number, since it uses less digits than its factorization.

83670957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546892 (or 546889 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 83670957 is about 9147.1830089924. The cubic root of 83670957 is about 437.3793204020.

The spelling of 83670957 in words is "eighty-three million, six hundred seventy thousand, nine hundred fifty-seven".