74938147 has 8 divisors (see below), whose sum is σ = 79140560. Its totient is φ = 70761600.

The previous prime is 74938139. The next prime is 74938151. The reversal of 74938147 is 74183947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74938147 - 2³ = 74938139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74938177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354 + ... + 12247.

It is an arithmetic number, because the mean of its divisors is an integer number (9892570).

Almost surely, 2^74938147 is an apocalyptic number.

74938147 is a deficient number, since it is larger than the sum of its proper divisors (4202413).

74938147 is a wasteful number, since it uses less digits than its factorization.

74938147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12933.

The product of its digits is 169344, while the sum is 43.

The square root of 74938147 is about 8656.6822166463. The cubic root of 74938147 is about 421.6003700096.

The spelling of 74938147 in words is "seventy-four million, nine hundred thirty-eight thousand, one hundred forty-seven".