999696742 has 64 divisors (see below), whose sum is σ = 1791590400. Its totient is φ = 413316000.

The previous prime is 999696703. The next prime is 999696743. The reversal of 999696742 is 247696999.

It is a super-3 number, since 3×999696742³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999696743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2319267 + ... + 2319697.

It is an arithmetic number, because the mean of its divisors is an integer number (27993600).

Almost surely, 2^999696742 is an apocalyptic number.

999696742 is a deficient number, since it is larger than the sum of its proper divisors (791893658).

999696742 is a wasteful number, since it uses less digits than its factorization.

999696742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673.

The product of its digits is 13226976, while the sum is 61.

The square root of 999696742 is about 31617.9813081101. The cubic root of 999696742 is about 999.8989037799.

The spelling of 999696742 in words is "nine hundred ninety-nine million, six hundred ninety-six thousand, seven hundred forty-two".