20867901 has 8 divisors (see below), whose sum is σ = 28111104. Its totient is φ = 13768320.

The previous prime is 20867879. The next prime is 20867911. The reversal of 20867901 is 10976802.

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

It is not a de Polignac number, because 20867901 - 2⁷ = 20867773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20867911) 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, 35565 + ... + 36146.

It is an arithmetic number, because the mean of its divisors is an integer number (3513888).

Almost surely, 2^20867901 is an apocalyptic number.

It is an amenable number.

20867901 is a deficient number, since it is larger than the sum of its proper divisors (7243203).

20867901 is an equidigital number, since it uses as much as digits as its factorization.

20867901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71811.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 20867901 is about 4568.1397745691. The cubic root of 20867901 is about 275.3127065410.

The spelling of 20867901 in words is "twenty million, eight hundred sixty-seven thousand, nine hundred one".