742689775 has 6 divisors (see below), whose sum is σ = 920935352. Its totient is φ = 594151800.

The previous prime is 742689769. The next prime is 742689791. The reversal of 742689775 is 577986247.

It is not a de Polignac number, because 742689775 - 2²⁹ = 205818863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14853771 + ... + 14853820.

Almost surely, 2^742689775 is an apocalyptic number.

742689775 is a deficient number, since it is larger than the sum of its proper divisors (178245577).

742689775 is a wasteful number, since it uses less digits than its factorization.

742689775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29707601 (or 29707596 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 55.

The square root of 742689775 is about 27252.3352210412. The cubic root of 742689775 is about 905.5987511370.

The spelling of 742689775 in words is "seven hundred forty-two million, six hundred eighty-nine thousand, seven hundred seventy-five".