83457511 has 2 divisors, whose sum is σ = 83457512. Its totient is φ = 83457510.

The previous prime is 83457503. The next prime is 83457601. The reversal of 83457511 is 11575438.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83457511 - 2³ = 83457503 is a prime.

It is a super-2 number, since 2×83457511² = 13930312284630242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83427511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41728755 + 41728756.

It is an arithmetic number, because the mean of its divisors is an integer number (41728756).

Almost surely, 2^83457511 is an apocalyptic number.

83457511 is a deficient number, since it is larger than the sum of its proper divisors (1).

83457511 is an equidigital number, since it uses as much as digits as its factorization.

83457511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 34.

The square root of 83457511 is about 9135.5082507762. The cubic root of 83457511 is about 437.0070830593.

The spelling of 83457511 in words is "eighty-three million, four hundred fifty-seven thousand, five hundred eleven".