20946495 has 8 divisors (see below), whose sum is σ = 33514416. Its totient is φ = 11171456.

The previous prime is 20946487. The next prime is 20946503. The reversal of 20946495 is 59464902.

It is an interprime number because it is at equal distance from previous prime (20946487) and next prime (20946503).

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 20946495 - 2³ = 20946487 is a prime.

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, 698202 + ... + 698231.

It is an arithmetic number, because the mean of its divisors is an integer number (4189302).

Almost surely, 2^20946495 is an apocalyptic number.

20946495 is a deficient number, since it is larger than the sum of its proper divisors (12567921).

20946495 is a wasteful number, since it uses less digits than its factorization.

20946495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396441.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 20946495 is about 4576.7340975853. The cubic root of 20946495 is about 275.6579068696.

The spelling of 20946495 in words is "twenty million, nine hundred forty-six thousand, four hundred ninety-five".