21077596 has 6 divisors (see below), whose sum is σ = 36885800. Its totient is φ = 10538796.

The previous prime is 21077561. The next prime is 21077599. The reversal of 21077596 is 69577012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21077599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2634696 + ... + 2634703.

Almost surely, 2^21077596 is an apocalyptic number.

It is an amenable number.

21077596 is a deficient number, since it is larger than the sum of its proper divisors (15808204).

21077596 is a wasteful number, since it uses less digits than its factorization.

21077596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269403 (or 5269401 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 21077596 is about 4591.0343061232. The cubic root of 21077596 is about 276.2318118285.

The spelling of 21077596 in words is "twenty-one million, seventy-seven thousand, five hundred ninety-six".