99707390 has 16 divisors (see below), whose sum is σ = 182153232. Its totient is φ = 39287424.

The previous prime is 99707389. The next prime is 99707393. The reversal of 99707390 is 9370799.

It is a super-2 number, since 2×99707390² = 19883127241224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99707393) 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, 73739 + ... + 75078.

It is an arithmetic number, because the mean of its divisors is an integer number (11384577).

Almost surely, 2^99707390 is an apocalyptic number.

99707390 is a deficient number, since it is larger than the sum of its proper divisors (82445842).

99707390 is a wasteful number, since it uses less digits than its factorization.

99707390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148891.

The product of its (nonzero) digits is 107163, while the sum is 44.

The square root of 99707390 is about 9985.3587817364. The cubic root of 99707390 is about 463.7057159662.

The spelling of 99707390 in words is "ninety-nine million, seven hundred seven thousand, three hundred ninety".