940699721 has 8 divisors (see below), whose sum is σ = 1022898240. Its totient is φ = 859906512.

The previous prime is 940699693. The next prime is 940699733. The reversal of 940699721 is 127996049.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 940699721 - 2⁶ = 940699657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (940699741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349931 + ... + 352608.

It is an arithmetic number, because the mean of its divisors is an integer number (127862280).

Almost surely, 2^940699721 is an apocalyptic number.

It is an amenable number.

940699721 is a deficient number, since it is larger than the sum of its proper divisors (82198519).

940699721 is a wasteful number, since it uses less digits than its factorization.

940699721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702655.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 940699721 is about 30670.8285020147. The cubic root of 940699721 is about 979.8291111857.

The spelling of 940699721 in words is "nine hundred forty million, six hundred ninety-nine thousand, seven hundred twenty-one".