63670037 has 2 divisors, whose sum is σ = 63670038. Its totient is φ = 63670036.

The previous prime is 63670021. The next prime is 63670039. The reversal of 63670037 is 73007636.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59613841 + 4056196 = 7721^2 + 2014^2 .

It is a cyclic number.

It is not a de Polignac number, because 63670037 - 2⁴ = 63670021 is a prime.

It is a super-2 number, since 2×63670037² = 8107747223162738, which contains 22 as substring.

Together with 63670039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63669985 and 63670012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63670039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31835018 + 31835019.

It is an arithmetic number, because the mean of its divisors is an integer number (31835019).

Almost surely, 2^63670037 is an apocalyptic number.

It is an amenable number.

63670037 is a deficient number, since it is larger than the sum of its proper divisors (1).

63670037 is an equidigital number, since it uses as much as digits as its factorization.

63670037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 63670037 is about 7979.3506628046. The cubic root of 63670037 is about 399.3113923122.

The spelling of 63670037 in words is "sixty-three million, six hundred seventy thousand, thirty-seven".