99764417 has 4 divisors (see below), whose sum is σ = 102982656. Its totient is φ = 96546180.

The previous prime is 99764411. The next prime is 99764447. The reversal of 99764417 is 71446799.

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: 71446799 = 61 ⋅1171259.

It is a cyclic number.

It is not a de Polignac number, because 99764417 - 2¹² = 99760321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99764411) 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, 1609073 + ... + 1609134.

It is an arithmetic number, because the mean of its divisors is an integer number (25745664).

Almost surely, 2^99764417 is an apocalyptic number.

It is an amenable number.

99764417 is a deficient number, since it is larger than the sum of its proper divisors (3218239).

99764417 is a wasteful number, since it uses less digits than its factorization.

99764417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218238.

The product of its digits is 381024, while the sum is 47.

The square root of 99764417 is about 9988.2139043975. The cubic root of 99764417 is about 463.7941036174.

The spelling of 99764417 in words is "ninety-nine million, seven hundred sixty-four thousand, four hundred seventeen".