83890351 has 4 divisors (see below), whose sum is σ = 83912400. Its totient is φ = 83868304.

The previous prime is 83890349. The next prime is 83890381. The reversal of 83890351 is 15309838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15309838 = 2 ⋅7654919.

It is a cyclic number.

It is not a de Polignac number, because 83890351 - 2¹ = 83890349 is a prime.

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 83890351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83890321) 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, 3691 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (20978100).

Almost surely, 2^83890351 is an apocalyptic number.

83890351 is a deficient number, since it is larger than the sum of its proper divisors (22049).

83890351 is a wasteful number, since it uses less digits than its factorization.

83890351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22048.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 83890351 is about 9159.1675931823. The cubic root of 83890351 is about 437.7612715315.

The spelling of 83890351 in words is "eighty-three million, eight hundred ninety thousand, three hundred fifty-one".