99700278 has 16 divisors (see below), whose sum is σ = 205833216. Its totient is φ = 32161320.

The previous prime is 99700267. The next prime is 99700319. The reversal of 99700278 is 87200799.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267826 + ... + 268197.

It is an arithmetic number, because the mean of its divisors is an integer number (12864576).

Almost surely, 2^99700278 is an apocalyptic number.

99700278 is an abundant number, since it is smaller than the sum of its proper divisors (106132938).

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

99700278 is a wasteful number, since it uses less digits than its factorization.

99700278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536059.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 99700278 is about 9985.0026539806. The cubic root of 99700278 is about 463.6946905264.

The spelling of 99700278 in words is "ninety-nine million, seven hundred thousand, two hundred seventy-eight".