746443381 has 2 divisors, whose sum is σ = 746443382. Its totient is φ = 746443380.

The previous prime is 746443351. The next prime is 746443409. The reversal of 746443381 is 183344647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482900625 + 263542756 = 21975^2 + 16234^2 .

It is a cyclic number.

It is not a de Polignac number, because 746443381 - 2⁵ = 746443349 is a prime.

It is a super-2 number, since 2×746443381² = 1114355442077422322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746443301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373221690 + 373221691.

It is an arithmetic number, because the mean of its divisors is an integer number (373221691).

Almost surely, 2^746443381 is an apocalyptic number.

It is an amenable number.

746443381 is a deficient number, since it is larger than the sum of its proper divisors (1).

746443381 is an equidigital number, since it uses as much as digits as its factorization.

746443381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 746443381 is about 27321.1160277175. The cubic root of 746443381 is about 907.1218411920.

The spelling of 746443381 in words is "seven hundred forty-six million, four hundred forty-three thousand, three hundred eighty-one".