84157249 has 8 divisors (see below), whose sum is σ = 92104992. Its totient is φ = 76259040.

The previous prime is 84157237. The next prime is 84157261. The reversal of 84157249 is 94275148.

It is an interprime number because it is at equal distance from previous prime (84157237) and next prime (84157261).

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

It is not a de Polignac number, because 84157249 - 2⁷ = 84157121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84157849) 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, 8779 + ... + 15664.

It is an arithmetic number, because the mean of its divisors is an integer number (11513124).

Almost surely, 2^84157249 is an apocalyptic number.

It is an amenable number.

84157249 is a deficient number, since it is larger than the sum of its proper divisors (7947743).

84157249 is a wasteful number, since it uses less digits than its factorization.

84157249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24767.

The product of its digits is 80640, while the sum is 40.

The square root of 84157249 is about 9173.7260150933. The cubic root of 84157249 is about 438.2250273680.

The spelling of 84157249 in words is "eighty-four million, one hundred fifty-seven thousand, two hundred forty-nine".