99407767 has 4 divisors (see below), whose sum is σ = 99525160. Its totient is φ = 99290376.

The previous prime is 99407761. The next prime is 99407779. The reversal of 99407767 is 76770499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76770499 = 13 ⋅5905423.

It is a cyclic number.

It is not a de Polignac number, because 99407767 - 2¹⁵ = 99374999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99407767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99407761) 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, 57417 + ... + 59122.

It is an arithmetic number, because the mean of its divisors is an integer number (24881290).

Almost surely, 2^99407767 is an apocalyptic number.

99407767 is a deficient number, since it is larger than the sum of its proper divisors (117393).

99407767 is a wasteful number, since it uses less digits than its factorization.

99407767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117392.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 99407767 is about 9970.3443772018. The cubic root of 99407767 is about 463.2407678145.

The spelling of 99407767 in words is "ninety-nine million, four hundred seven thousand, seven hundred sixty-seven".