83315047 has 4 divisors (see below), whose sum is σ = 83555496. Its totient is φ = 83074600.

The previous prime is 83315027. The next prime is 83315051. The reversal of 83315047 is 74051338.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74051338 = 2 ⋅37025669.

It is a cyclic number.

It is not a de Polignac number, because 83315047 - 2⁷ = 83314919 is a prime.

It is a super-2 number, since 2×83315047² = 13882794113224418, 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 (83315027) 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, 119704 + ... + 120397.

It is an arithmetic number, because the mean of its divisors is an integer number (20888874).

Almost surely, 2^83315047 is an apocalyptic number.

83315047 is a deficient number, since it is larger than the sum of its proper divisors (240449).

83315047 is a wasteful number, since it uses less digits than its factorization.

83315047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240448.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 83315047 is about 9127.7076530748. The cubic root of 83315047 is about 436.7582808638.

The spelling of 83315047 in words is "eighty-three million, three hundred fifteen thousand, forty-seven".