99974547 has 32 divisors (see below), whose sum is σ = 152281920. Its totient is φ = 64800000.

The previous prime is 99974531. The next prime is 99974549. The reversal of 99974547 is 74547999.

99974547 is a `hidden beast` number, since 9 + 9 + 97 + 4 + 547 = 666.

It is not a de Polignac number, because 99974547 - 2⁴ = 99974531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99974493 and 99974502.

It is not an unprimeable number, because it can be changed into a prime (99974549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166047 + ... + 166647.

It is an arithmetic number, because the mean of its divisors is an integer number (4758810).

Almost surely, 2^99974547 is an apocalyptic number.

99974547 is a deficient number, since it is larger than the sum of its proper divisors (52307373).

99974547 is a wasteful number, since it uses less digits than its factorization.

99974547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 766 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 99974547 is about 9998.7272690078. The cubic root of 99974547 is about 464.1194992327.

The spelling of 99974547 in words is "ninety-nine million, nine hundred seventy-four thousand, five hundred forty-seven".