64963537 has 2 divisors, whose sum is σ = 64963538. Its totient is φ = 64963536.

The previous prime is 64963513. The next prime is 64963559. The reversal of 64963537 is 73536946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64256256 + 707281 = 8016^2 + 841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64963537 is a prime.

It is a super-2 number, since 2×64963537² = 8440522279100738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64963493 and 64963502.

It is not a weakly prime, because it can be changed into another prime (64960537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32481768 + 32481769.

It is an arithmetic number, because the mean of its divisors is an integer number (32481769).

Almost surely, 2^64963537 is an apocalyptic number.

It is an amenable number.

64963537 is a deficient number, since it is larger than the sum of its proper divisors (1).

64963537 is an equidigital number, since it uses as much as digits as its factorization.

64963537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 43.

The square root of 64963537 is about 8059.9960918105. The cubic root of 64963537 is about 401.9973783481.

The spelling of 64963537 in words is "sixty-four million, nine hundred sixty-three thousand, five hundred thirty-seven".