74840207 has 4 divisors (see below), whose sum is σ = 80597160. Its totient is φ = 69083256.

The previous prime is 74840201. The next prime is 74840219. The reversal of 74840207 is 70204847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70204847 = 1103 ⋅63649.

It is a cyclic number.

It is not a de Polignac number, because 74840207 - 2⁸ = 74839951 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 (74840201) 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, 2878457 + ... + 2878482.

It is an arithmetic number, because the mean of its divisors is an integer number (20149290).

Almost surely, 2^74840207 is an apocalyptic number.

74840207 is a deficient number, since it is larger than the sum of its proper divisors (5756953).

74840207 is a wasteful number, since it uses less digits than its factorization.

74840207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756952.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 74840207 is about 8651.0234654635. The cubic root of 74840207 is about 421.4166205062.

The spelling of 74840207 in words is "seventy-four million, eight hundred forty thousand, two hundred seven".