99494831 has 4 divisors (see below), whose sum is σ = 99544032. Its totient is φ = 99445632.

The previous prime is 99494821. The next prime is 99494851. The reversal of 99494831 is 13849499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13849499 = 19 ⋅728921.

It is a cyclic number.

It is not a de Polignac number, because 99494831 - 2²⁶ = 32385967 is a prime.

It is a super-2 number, since 2×99494831² = 19798442791437122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99494821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21431 + ... + 25656.

It is an arithmetic number, because the mean of its divisors is an integer number (24886008).

Almost surely, 2^99494831 is an apocalyptic number.

99494831 is a deficient number, since it is larger than the sum of its proper divisors (49201).

99494831 is a wasteful number, since it uses less digits than its factorization.

99494831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49200.

The product of its digits is 279936, while the sum is 47.

The square root of 99494831 is about 9974.7095697068. The cubic root of 99494831 is about 463.3759679324.

The spelling of 99494831 in words is "ninety-nine million, four hundred ninety-four thousand, eight hundred thirty-one".