747174661 has 2 divisors, whose sum is σ = 747174662. Its totient is φ = 747174660.

The previous prime is 747174641. The next prime is 747174689. The reversal of 747174661 is 166471747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729324036 + 17850625 = 27006^2 + 4225^2 .

It is a cyclic number.

It is not a de Polignac number, because 747174661 - 2¹⁷ = 747043589 is a prime.

It is equal to p_38564962 and since 747174661 and 38564962 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747174641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373587330 + 373587331.

It is an arithmetic number, because the mean of its divisors is an integer number (373587331).

Almost surely, 2^747174661 is an apocalyptic number.

It is an amenable number.

747174661 is a deficient number, since it is larger than the sum of its proper divisors (1).

747174661 is an equidigital number, since it uses as much as digits as its factorization.

747174661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 43.

The square root of 747174661 is about 27334.4958065811. The cubic root of 747174661 is about 907.4179759766.

The spelling of 747174661 in words is "seven hundred forty-seven million, one hundred seventy-four thousand, six hundred sixty-one".