83690707 has 4 divisors (see below), whose sum is σ = 85952656. Its totient is φ = 81428760.

The previous prime is 83690699. The next prime is 83690729. The reversal of 83690707 is 70709638.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70709638 = 2 ⋅35354819.

It is a cyclic number.

It is not a de Polignac number, because 83690707 - 2³ = 83690699 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83690707.

It is not an unprimeable number, because it can be changed into a prime (83690107) 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, 1130919 + ... + 1130992.

It is an arithmetic number, because the mean of its divisors is an integer number (21488164).

Almost surely, 2^83690707 is an apocalyptic number.

83690707 is a deficient number, since it is larger than the sum of its proper divisors (2261949).

83690707 is a wasteful number, since it uses less digits than its factorization.

83690707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261948.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 83690707 is about 9148.2625126305. The cubic root of 83690707 is about 437.4137312350.

The spelling of 83690707 in words is "eighty-three million, six hundred ninety thousand, seven hundred seven".