21296902 has 8 divisors (see below), whose sum is σ = 34849512. Its totient is φ = 9680400.

The previous prime is 21296879. The next prime is 21296909. The reversal of 21296902 is 20969212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21296909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483999 + ... + 484042.

It is an arithmetic number, because the mean of its divisors is an integer number (4356189).

Almost surely, 2^21296902 is an apocalyptic number.

21296902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21296902 is a deficient number, since it is larger than the sum of its proper divisors (13552610).

21296902 is a wasteful number, since it uses less digits than its factorization.

21296902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968054.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 21296902 is about 4614.8566608292. The cubic root of 21296902 is about 277.1865443128.

The spelling of 21296902 in words is "twenty-one million, two hundred ninety-six thousand, nine hundred two".