99964906 has 4 divisors (see below), whose sum is σ = 149947362. Its totient is φ = 49982452.

The previous prime is 99964903. The next prime is 99964933. The reversal of 99964906 is 60946999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60946999 = 79 ⋅771481.

It can be written as a sum of positive squares in only one way, i.e., 99181681 + 783225 = 9959^2 + 885^2 .

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (99964901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24991225 + ... + 24991228.

Almost surely, 2^99964906 is an apocalyptic number.

99964906 is a deficient number, since it is larger than the sum of its proper divisors (49982456).

99964906 is a wasteful number, since it uses less digits than its factorization.

99964906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49982455.

The product of its (nonzero) digits is 944784, while the sum is 52.

The square root of 99964906 is about 9998.2451460244. The cubic root of 99964906 is about 464.1045797022.

The spelling of 99964906 in words is "ninety-nine million, nine hundred sixty-four thousand, nine hundred six".