83913877 has 2 divisors, whose sum is σ = 83913878. Its totient is φ = 83913876.

The previous prime is 83913859. The next prime is 83913889. The reversal of 83913877 is 77831938.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51753636 + 32160241 = 7194^2 + 5671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83913877 is a prime.

It is a super-2 number, since 2×83913877² = 14083077506342258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83917877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41956938 + 41956939.

It is an arithmetic number, because the mean of its divisors is an integer number (41956939).

Almost surely, 2^83913877 is an apocalyptic number.

It is an amenable number.

83913877 is a deficient number, since it is larger than the sum of its proper divisors (1).

83913877 is an equidigital number, since it uses as much as digits as its factorization.

83913877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The square root of 83913877 is about 9160.4517901684. The cubic root of 83913877 is about 437.8021892651.

The spelling of 83913877 in words is "eighty-three million, nine hundred thirteen thousand, eight hundred seventy-seven".