21966702 has 16 divisors (see below), whose sum is σ = 45843840. Its totient is φ = 7003832.

The previous prime is 21966691. The next prime is 21966727. The reversal of 21966702 is 20766912.

It is a super-3 number, since 3×21966702³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79452 + ... + 79727.

It is an arithmetic number, because the mean of its divisors is an integer number (2865240).

Almost surely, 2^21966702 is an apocalyptic number.

21966702 is an abundant number, since it is smaller than the sum of its proper divisors (23877138).

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

21966702 is a wasteful number, since it uses less digits than its factorization.

21966702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159207.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 21966702 is about 4686.8648369672. The cubic root of 21966702 is about 280.0624945539.

The spelling of 21966702 in words is "twenty-one million, nine hundred sixty-six thousand, seven hundred two".