83700731 has 2 divisors, whose sum is σ = 83700732. Its totient is φ = 83700730.

The previous prime is 83700691. The next prime is 83700739. The reversal of 83700731 is 13700738.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83700731 - 2⁶ = 83700667 is a prime.

It is a super-2 number, since 2×83700731² = 14011624739868722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 83700694 and 83700703.

It is not a weakly prime, because it can be changed into another prime (83700739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41850365 + 41850366.

It is an arithmetic number, because the mean of its divisors is an integer number (41850366).

Almost surely, 2^83700731 is an apocalyptic number.

83700731 is a deficient number, since it is larger than the sum of its proper divisors (1).

83700731 is an equidigital number, since it uses as much as digits as its factorization.

83700731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 83700731 is about 9148.8103598227. The cubic root of 83700731 is about 437.4311941862.

The spelling of 83700731 in words is "eighty-three million, seven hundred thousand, seven hundred thirty-one".