83769431 has 4 divisors (see below), whose sum is σ = 84117264. Its totient is φ = 83421600.

The previous prime is 83769403. The next prime is 83769451. The reversal of 83769431 is 13496738.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83769431 - 2²² = 79575127 is a prime.

It is a super-2 number, since 2×83769431² = 14034635140127522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83769451) 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, 173555 + ... + 174036.

It is an arithmetic number, because the mean of its divisors is an integer number (21029316).

Almost surely, 2^83769431 is an apocalyptic number.

83769431 is a deficient number, since it is larger than the sum of its proper divisors (347833).

83769431 is a wasteful number, since it uses less digits than its factorization.

83769431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347832.

The product of its digits is 108864, while the sum is 41.

The square root of 83769431 is about 9152.5641762295. The cubic root of 83769431 is about 437.5508399150.

The spelling of 83769431 in words is "eighty-three million, seven hundred sixty-nine thousand, four hundred thirty-one".