84469257 has 32 divisors (see below), whose sum is σ = 130291200. Its totient is φ = 54020736.

The previous prime is 84469247. The next prime is 84469283. The reversal of 84469257 is 75296448.

It is a happy number.

It is not a de Polignac number, because 84469257 - 2⁴ = 84469241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84469237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182208 + ... + 182670.

It is an arithmetic number, because the mean of its divisors is an integer number (4071600).

Almost surely, 2^84469257 is an apocalyptic number.

84469257 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

84469257 is a deficient number, since it is larger than the sum of its proper divisors (45821943).

84469257 is a wasteful number, since it uses less digits than its factorization.

84469257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 728 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 84469257 is about 9190.7158045497. The cubic root of 84469257 is about 438.7659238870.

The spelling of 84469257 in words is "eighty-four million, four hundred sixty-nine thousand, two hundred fifty-seven".