63120437 has 8 divisors (see below), whose sum is σ = 63764376. Its totient is φ = 62479872.

The previous prime is 63120427. The next prime is 63120467. The reversal of 63120437 is 73402136.

It can be written as a sum of positive squares in 4 ways, for example, as 1874161 + 61246276 = 1369^2 + 7826^2 .

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 63120437 - 2⁸ = 63120181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63120427) 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, 52313 + ... + 53505.

It is an arithmetic number, because the mean of its divisors is an integer number (7970547).

Almost surely, 2^63120437 is an apocalyptic number.

It is an amenable number.

63120437 is a deficient number, since it is larger than the sum of its proper divisors (643939).

63120437 is a wasteful number, since it uses less digits than its factorization.

63120437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 63120437 is about 7944.8371286012. The cubic root of 63120437 is about 398.1591179635.

The spelling of 63120437 in words is "sixty-three million, one hundred twenty thousand, four hundred thirty-seven".