84903557 has 4 divisors (see below), whose sum is σ = 88595040. Its totient is φ = 81212076.

The previous prime is 84903541. The next prime is 84903601. The reversal of 84903557 is 75530948.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84903557 - 2⁴ = 84903541 is a prime.

It is a super-2 number, since 2×84903557² = 14417227982504498, 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 (84903157) 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, 1845707 + ... + 1845752.

It is an arithmetic number, because the mean of its divisors is an integer number (22148760).

Almost surely, 2^84903557 is an apocalyptic number.

It is an amenable number.

84903557 is a deficient number, since it is larger than the sum of its proper divisors (3691483).

84903557 is a wasteful number, since it uses less digits than its factorization.

84903557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691482.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 84903557 is about 9214.3126167935. The cubic root of 84903557 is about 439.5166127367.

The spelling of 84903557 in words is "eighty-four million, nine hundred three thousand, five hundred fifty-seven".