612644701 has 2 divisors, whose sum is σ = 612644702. Its totient is φ = 612644700.

The previous prime is 612644699. The next prime is 612644719. The reversal of 612644701 is 107446216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607671801 + 4972900 = 24651^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 612644701 - 2¹ = 612644699 is a prime.

Together with 612644699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612644771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306322350 + 306322351.

It is an arithmetic number, because the mean of its divisors is an integer number (306322351).

Almost surely, 2^612644701 is an apocalyptic number.

It is an amenable number.

612644701 is a deficient number, since it is larger than the sum of its proper divisors (1).

612644701 is an equidigital number, since it uses as much as digits as its factorization.

612644701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 612644701 is about 24751.6605705557. The cubic root of 612644701 is about 849.3164982810.

The spelling of 612644701 in words is "six hundred twelve million, six hundred forty-four thousand, seven hundred one".