20977462 has 8 divisors (see below), whose sum is σ = 34326792. Its totient is φ = 9535200.

The previous prime is 20977441. The next prime is 20977477. The reversal of 20977462 is 26477902.

It is a happy number.

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

It is a super-2 number, since 2×20977462² = 880107823922888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476739 + ... + 476782.

It is an arithmetic number, because the mean of its divisors is an integer number (4290849).

Almost surely, 2^20977462 is an apocalyptic number.

20977462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20977462 is a deficient number, since it is larger than the sum of its proper divisors (13349330).

20977462 is a wasteful number, since it uses less digits than its factorization.

20977462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953534.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 20977462 is about 4580.1159373972. The cubic root of 20977462 is about 275.7936828901.

It can be divided in two parts, 2097 and 7462, that added together give a palindrome (9559).

The spelling of 20977462 in words is "twenty million, nine hundred seventy-seven thousand, four hundred sixty-two".