742112687 has 4 divisors (see below), whose sum is σ = 774378480. Its totient is φ = 709846896.

The previous prime is 742112681. The next prime is 742112719. The reversal of 742112687 is 786211247.

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

It is a cyclic number.

It is not a de Polignac number, because 742112687 - 2¹⁰ = 742111663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 742112687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742112681) 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, 16132862 + ... + 16132907.

It is an arithmetic number, because the mean of its divisors is an integer number (193594620).

Almost surely, 2^742112687 is an apocalyptic number.

742112687 is a deficient number, since it is larger than the sum of its proper divisors (32265793).

742112687 is a wasteful number, since it uses less digits than its factorization.

742112687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32265792.

The product of its digits is 37632, while the sum is 38.

The square root of 742112687 is about 27241.7453001822. The cubic root of 742112687 is about 905.3641329476.

The spelling of 742112687 in words is "seven hundred forty-two million, one hundred twelve thousand, six hundred eighty-seven".