21460677 has 12 divisors (see below), whose sum is σ = 33286176. Its totient is φ = 12263160.

The previous prime is 21460657. The next prime is 21460697. The reversal of 21460677 is 77606412.

It is an interprime number because it is at equal distance from previous prime (21460657) and next prime (21460697).

It is not a de Polignac number, because 21460677 - 2¹⁰ = 21459653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21460657) 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, 72849 + ... + 73142.

It is an arithmetic number, because the mean of its divisors is an integer number (2773848).

Almost surely, 2^21460677 is an apocalyptic number.

It is an amenable number.

21460677 is a deficient number, since it is larger than the sum of its proper divisors (11825499).

21460677 is a wasteful number, since it uses less digits than its factorization.

21460677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146008 (or 146001 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 21460677 is about 4632.5669989758. The cubic root of 21460677 is about 277.8952601306.

The spelling of 21460677 in words is "twenty-one million, four hundred sixty thousand, six hundred seventy-seven".