83913457 has 2 divisors, whose sum is σ = 83913458. Its totient is φ = 83913456.

The previous prime is 83913433. The next prime is 83913523. The reversal of 83913457 is 75431938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77158656 + 6754801 = 8784^2 + 2599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83913457 is a prime.

It is not a weakly prime, because it can be changed into another prime (83923457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41956728 + 41956729.

It is an arithmetic number, because the mean of its divisors is an integer number (41956729).

Almost surely, 2^83913457 is an apocalyptic number.

It is an amenable number.

83913457 is a deficient number, since it is larger than the sum of its proper divisors (1).

83913457 is an equidigital number, since it uses as much as digits as its factorization.

83913457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 83913457 is about 9160.4288655062. The cubic root of 83913457 is about 437.8014588447.

The spelling of 83913457 in words is "eighty-three million, nine hundred thirteen thousand, four hundred fifty-seven".