742686693 has 16 divisors (see below), whose sum is σ = 1132216320. Its totient is φ = 424203696.

The previous prime is 742686691. The next prime is 742686697. The reversal of 742686693 is 396686247.

It is a happy number.

It is not a de Polignac number, because 742686693 - 2¹ = 742686691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742686691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50596 + ... + 63602.

It is an arithmetic number, because the mean of its divisors is an integer number (70763520).

Almost surely, 2^742686693 is an apocalyptic number.

It is an amenable number.

742686693 is a deficient number, since it is larger than the sum of its proper divisors (389529627).

742686693 is a wasteful number, since it uses less digits than its factorization.

742686693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15736.

The product of its digits is 2612736, while the sum is 51.

The square root of 742686693 is about 27252.2786753695. The cubic root of 742686693 is about 905.5974984564.

The spelling of 742686693 in words is "seven hundred forty-two million, six hundred eighty-six thousand, six hundred ninety-three".