64748693 has 2 divisors, whose sum is σ = 64748694. Its totient is φ = 64748692.

The previous prime is 64748689. The next prime is 64748701. The reversal of 64748693 is 39684746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47914084 + 16834609 = 6922^2 + 4103^2 .

It is a cyclic number.

It is not a de Polignac number, because 64748693 - 2² = 64748689 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64747693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32374346 + 32374347.

It is an arithmetic number, because the mean of its divisors is an integer number (32374347).

Almost surely, 2^64748693 is an apocalyptic number.

It is an amenable number.

64748693 is a deficient number, since it is larger than the sum of its proper divisors (1).

64748693 is an equidigital number, since it uses as much as digits as its factorization.

64748693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 64748693 is about 8046.6572562773. The cubic root of 64748693 is about 401.5537340453.

The spelling of 64748693 in words is "sixty-four million, seven hundred forty-eight thousand, six hundred ninety-three".