946721718 has 24 divisors (see below), whose sum is σ = 2061650448. Its totient is φ = 313970832.

The previous prime is 946721717. The next prime is 946721731. The reversal of 946721718 is 817127649.

It is a happy number.

It is a super-2 number, since 2×946721718² = 1792564022665743048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946721717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129946 + ... + 137037.

It is an arithmetic number, because the mean of its divisors is an integer number (85902102).

Almost surely, 2^946721718 is an apocalyptic number.

946721718 is an abundant number, since it is smaller than the sum of its proper divisors (1114928730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

946721718 is a wasteful number, since it uses less digits than its factorization.

946721718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267188 (or 267185 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 946721718 is about 30768.8432996757. The cubic root of 946721718 is about 981.9154948485.

The spelling of 946721718 in words is "nine hundred forty-six million, seven hundred twenty-one thousand, seven hundred eighteen".