99507794 has 4 divisors (see below), whose sum is σ = 149261694. Its totient is φ = 49753896.

The previous prime is 99507791. The next prime is 99507803. The reversal of 99507794 is 49770599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49770599 = 109 ⋅456611.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 405769 = 9955^2 + 637^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99507791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24876947 + ... + 24876950.

Almost surely, 2^99507794 is an apocalyptic number.

99507794 is a deficient number, since it is larger than the sum of its proper divisors (49753900).

99507794 is a wasteful number, since it uses less digits than its factorization.

99507794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49753899.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 99507794 is about 9975.3593418984. The cubic root of 99507794 is about 463.3960911949.

The spelling of 99507794 in words is "ninety-nine million, five hundred seven thousand, seven hundred ninety-four".