99405077 has 4 divisors (see below), whose sum is σ = 99904800. Its totient is φ = 98905356.

The previous prime is 99405073. The next prime is 99405091. The reversal of 99405077 is 77050499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77050499 = 53 ⋅1453783.

It is a cyclic number.

It is not a de Polignac number, because 99405077 - 2² = 99405073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99405073) 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, 249563 + ... + 249960.

It is an arithmetic number, because the mean of its divisors is an integer number (24976200).

Almost surely, 2^99405077 is an apocalyptic number.

It is an amenable number.

99405077 is a deficient number, since it is larger than the sum of its proper divisors (499723).

99405077 is a wasteful number, since it uses less digits than its factorization.

99405077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499722.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 99405077 is about 9970.2094762347. The cubic root of 99405077 is about 463.2365893050.

The spelling of 99405077 in words is "ninety-nine million, four hundred five thousand, seventy-seven".