99674945 has 4 divisors (see below), whose sum is σ = 119609940. Its totient is φ = 79739952.

The previous prime is 99674933. The next prime is 99674957. The reversal of 99674945 is 54947699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54947699 = 3347 ⋅16417.

It is an interprime number because it is at equal distance from previous prime (99674933) and next prime (99674957).

It can be written as a sum of positive squares in 2 ways, for example, as 18800896 + 80874049 = 4336^2 + 8993^2 .

It is a cyclic number.

It is not a de Polignac number, because 99674945 - 2⁶ = 99674881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9967490 + ... + 9967499.

It is an arithmetic number, because the mean of its divisors is an integer number (29902485).

Almost surely, 2^99674945 is an apocalyptic number.

It is an amenable number.

99674945 is a deficient number, since it is larger than the sum of its proper divisors (19934995).

99674945 is a wasteful number, since it uses less digits than its factorization.

99674945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19934994.

The product of its digits is 2449440, while the sum is 53.

The square root of 99674945 is about 9983.7340208962. The cubic root of 99674945 is about 463.6554135626.

The spelling of 99674945 in words is "ninety-nine million, six hundred seventy-four thousand, nine hundred forty-five".