612705353 has 16 divisors (see below), whose sum is σ = 677194896. Its totient is φ = 550748160.

The previous prime is 612705343. The next prime is 612705361. The reversal of 612705353 is 353507216.

It can be written as a sum of positive squares in 8 ways, for example, as 8922169 + 603783184 = 2987^2 + 24572^2 .

It is a cyclic number.

It is not a de Polignac number, because 612705353 - 2¹⁴ = 612688969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612705343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530825 + ... + 531977.

It is an arithmetic number, because the mean of its divisors is an integer number (42324681).

Almost surely, 2^612705353 is an apocalyptic number.

It is an amenable number.

612705353 is a deficient number, since it is larger than the sum of its proper divisors (64489543).

612705353 is a wasteful number, since it uses less digits than its factorization.

612705353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 612705353 is about 24752.8857509584. The cubic root of 612705353 is about 849.3445248813.

The spelling of 612705353 in words is "six hundred twelve million, seven hundred five thousand, three hundred fifty-three".