742636867 has 4 divisors (see below), whose sum is σ = 848727856. Its totient is φ = 636545880.

The previous prime is 742636849. The next prime is 742636877. The reversal of 742636867 is 768636247.

742636867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768636247 = 59 ⋅13027733.

It is a cyclic number.

It is not a de Polignac number, because 742636867 - 2¹⁵ = 742604099 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 742636867.

It is not an unprimeable number, because it can be changed into a prime (742636877) 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, 53045484 + ... + 53045497.

It is an arithmetic number, because the mean of its divisors is an integer number (212181964).

Almost surely, 2^742636867 is an apocalyptic number.

742636867 is a deficient number, since it is larger than the sum of its proper divisors (106090989).

742636867 is a wasteful number, since it uses less digits than its factorization.

742636867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106090988.

The product of its digits is 2032128, while the sum is 49.

The square root of 742636867 is about 27251.3644979476. The cubic root of 742636867 is about 905.5772461703.

The spelling of 742636867 in words is "seven hundred forty-two million, six hundred thirty-six thousand, eight hundred sixty-seven".