745741973 has 2 divisors, whose sum is σ = 745741974. Its totient is φ = 745741972.

The previous prime is 745741967. The next prime is 745742021. The reversal of 745741973 is 379147547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 675064324 + 70677649 = 25982^2 + 8407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745741973 is a prime.

It is a super-2 number, since 2×745741973² = 1112262180587865458, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745741933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372870986 + 372870987.

It is an arithmetic number, because the mean of its divisors is an integer number (372870987).

Almost surely, 2^745741973 is an apocalyptic number.

It is an amenable number.

745741973 is a deficient number, since it is larger than the sum of its proper divisors (1).

745741973 is an equidigital number, since it uses as much as digits as its factorization.

745741973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 740880, while the sum is 47.

The square root of 745741973 is about 27308.2766391437. The cubic root of 745741973 is about 906.8376214158.

The spelling of 745741973 in words is "seven hundred forty-five million, seven hundred forty-one thousand, nine hundred seventy-three".