84709998 has 24 divisors (see below), whose sum is σ = 185167008. Its totient is φ = 27986112.

The previous prime is 84709973. The next prime is 84710069. The reversal of 84709998 is 89990748.

It is a super-2 number, since 2×84709998² = 14351567522320008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18790 + ... + 22857.

It is an arithmetic number, because the mean of its divisors is an integer number (7715292).

Almost surely, 2^84709998 is an apocalyptic number.

84709998 is an abundant number, since it is smaller than the sum of its proper divisors (100457010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84709998 is a wasteful number, since it uses less digits than its factorization.

84709998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41768 (or 41765 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 84709998 is about 9203.8034529210. The cubic root of 84709998 is about 439.1823624060.

The spelling of 84709998 in words is "eighty-four million, seven hundred nine thousand, nine hundred ninety-eight".