20627497 has 8 divisors (see below), whose sum is σ = 23279040. Its totient is φ = 18105360.

The previous prime is 20627489. The next prime is 20627531. The reversal of 20627497 is 79472602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20627497 - 2³ = 20627489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20627437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32013 + ... + 32650.

It is an arithmetic number, because the mean of its divisors is an integer number (2909880).

Almost surely, 2^20627497 is an apocalyptic number.

It is an amenable number.

20627497 is a deficient number, since it is larger than the sum of its proper divisors (2651543).

20627497 is a wasteful number, since it uses less digits than its factorization.

20627497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64703.

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

The square root of 20627497 is about 4541.7504334783. The cubic root of 20627497 is about 274.2513942958.

It can be divided in two parts, 2062 and 7497, that added together give a palindrome (9559).

The spelling of 20627497 in words is "twenty million, six hundred twenty-seven thousand, four hundred ninety-seven".