84057231 has 8 divisors (see below), whose sum is σ = 118669104. Its totient is φ = 52741760.

The previous prime is 84057227. The next prime is 84057287. The reversal of 84057231 is 13275048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84057231 - 2² = 84057227 is a prime.

It is a super-2 number, since 2×84057231² = 14131236166774722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84057931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824040 + ... + 824141.

It is an arithmetic number, because the mean of its divisors is an integer number (14833638).

Almost surely, 2^84057231 is an apocalyptic number.

84057231 is a deficient number, since it is larger than the sum of its proper divisors (34611873).

84057231 is a wasteful number, since it uses less digits than its factorization.

84057231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648201.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 84057231 is about 9168.2730653052. The cubic root of 84057231 is about 438.0513534167.

The spelling of 84057231 in words is "eighty-four million, fifty-seven thousand, two hundred thirty-one".