99646490 has 16 divisors (see below), whose sum is σ = 179797320. Its totient is φ = 39762240.

The previous prime is 99646427. The next prime is 99646541. The reversal of 99646490 is 9464699.

It can be written as a sum of positive squares in 4 ways, for example, as 38353249 + 61293241 = 6193^2 + 7829^2 .

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, 7625 + ... + 16044.

Almost surely, 2^99646490 is an apocalyptic number.

99646490 is a deficient number, since it is larger than the sum of its proper divisors (80150830).

99646490 is a wasteful number, since it uses less digits than its factorization.

99646490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24097.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 99646490 is about 9982.3088511626. The cubic root of 99646490 is about 463.6112882294.

The spelling of 99646490 in words is "ninety-nine million, six hundred forty-six thousand, four hundred ninety".