62720397 has 6 divisors (see below), whose sum is σ = 90596142. Its totient is φ = 41813592.

The previous prime is 62720393. The next prime is 62720423. The reversal of 62720397 is 79302726.

62720397 is a `hidden beast` number, since 627 + 20 + 3 + 9 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61921161 + 799236 = 7869^2 + 894^2 .

It is not a de Polignac number, because 62720397 - 2² = 62720393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62720393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3484458 + ... + 3484475.

It is an arithmetic number, because the mean of its divisors is an integer number (15099357).

Almost surely, 2^62720397 is an apocalyptic number.

It is an amenable number.

62720397 is a deficient number, since it is larger than the sum of its proper divisors (27875745).

62720397 is a wasteful number, since it uses less digits than its factorization.

62720397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6968939 (or 6968936 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 62720397 is about 7919.6210136597. The cubic root of 62720397 is about 397.3161936482.

The spelling of 62720397 in words is "sixty-two million, seven hundred twenty thousand, three hundred ninety-seven".