83416957 has 4 divisors (see below), whose sum is σ = 89833660. Its totient is φ = 77000256.

The previous prime is 83416913. The next prime is 83416979. The reversal of 83416957 is 75961438.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24265476 + 59151481 = 4926^2 + 7691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83416957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83416987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3208332 + ... + 3208357.

It is an arithmetic number, because the mean of its divisors is an integer number (22458415).

Almost surely, 2^83416957 is an apocalyptic number.

It is an amenable number.

83416957 is a deficient number, since it is larger than the sum of its proper divisors (6416703).

83416957 is a wasteful number, since it uses less digits than its factorization.

83416957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6416702.

The product of its digits is 181440, while the sum is 43.

The square root of 83416957 is about 9133.2884001328. The cubic root of 83416957 is about 436.9362875275.

The spelling of 83416957 in words is "eighty-three million, four hundred sixteen thousand, nine hundred fifty-seven".