74263863 has 4 divisors (see below), whose sum is σ = 99018488. Its totient is φ = 49509240.

The previous prime is 74263859. The next prime is 74263877. The reversal of 74263863 is 36836247.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74263863 - 2² = 74263859 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 (74263823) 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, 12377308 + ... + 12377313.

It is an arithmetic number, because the mean of its divisors is an integer number (24754622).

Almost surely, 2^74263863 is an apocalyptic number.

74263863 is a deficient number, since it is larger than the sum of its proper divisors (24754625).

74263863 is a wasteful number, since it uses less digits than its factorization.

74263863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24754624.

The product of its digits is 145152, while the sum is 39.

The square root of 74263863 is about 8617.6483451113. The cubic root of 74263863 is about 420.3320559983.

The spelling of 74263863 in words is "seventy-four million, two hundred sixty-three thousand, eight hundred sixty-three".