20621702 has 8 divisors (see below), whose sum is σ = 31071936. Its totient is φ = 10264392.

The previous prime is 20621693. The next prime is 20621759. The reversal of 20621702 is 20712602.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22673 + ... + 23564.

It is an arithmetic number, because the mean of its divisors is an integer number (3883992).

Almost surely, 2^20621702 is an apocalyptic number.

20621702 is a deficient number, since it is larger than the sum of its proper divisors (10450234).

20621702 is a wasteful number, since it uses less digits than its factorization.

20621702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46462.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20621702 is about 4541.1124187802. The cubic root of 20621702 is about 274.2257095560.

The spelling of 20621702 in words is "twenty million, six hundred twenty-one thousand, seven hundred two".