21482967 has 32 divisors (see below), whose sum is σ = 32472576. Its totient is φ = 12521600.

The previous prime is 21482963. The next prime is 21482987. The reversal of 21482967 is 76928412.

It is a cyclic number.

It is not a de Polignac number, because 21482967 - 2² = 21482963 is a prime.

It is a super-2 number, since 2×21482967² = 923035742246178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21482963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124093 + ... + 124265.

It is an arithmetic number, because the mean of its divisors is an integer number (1014768).

Almost surely, 2^21482967 is an apocalyptic number.

21482967 is a deficient number, since it is larger than the sum of its proper divisors (10989609).

21482967 is a wasteful number, since it uses less digits than its factorization.

21482967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 48384, while the sum is 39.

The square root of 21482967 is about 4634.9721682012. The cubic root of 21482967 is about 277.9914382402.

It can be divided in two parts, 2148 and 2967, that added together give a palindrome (5115).

The spelling of 21482967 in words is "twenty-one million, four hundred eighty-two thousand, nine hundred sixty-seven".