64973087 has 2 divisors, whose sum is σ = 64973088. Its totient is φ = 64973086.

The previous prime is 64973053. The next prime is 64973123. The reversal of 64973087 is 78037946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64973087 - 2¹² = 64968991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64973017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32486543 + 32486544.

It is an arithmetic number, because the mean of its divisors is an integer number (32486544).

Almost surely, 2^64973087 is an apocalyptic number.

64973087 is a deficient number, since it is larger than the sum of its proper divisors (1).

64973087 is an equidigital number, since it uses as much as digits as its factorization.

64973087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 64973087 is about 8060.5885020884. The cubic root of 64973087 is about 402.0170759972.

The spelling of 64973087 in words is "sixty-four million, nine hundred seventy-three thousand, eighty-seven".