746949391 has 2 divisors, whose sum is σ = 746949392. Its totient is φ = 746949390.

The previous prime is 746949389. The next prime is 746949397. The reversal of 746949391 is 193949647.

It is a weak prime.

It is an emirp because it is prime and its reverse (193949647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 746949391 - 2¹ = 746949389 is a prime.

Together with 746949389, 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 (746949397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373474695 + 373474696.

It is an arithmetic number, because the mean of its divisors is an integer number (373474696).

Almost surely, 2^746949391 is an apocalyptic number.

746949391 is a deficient number, since it is larger than the sum of its proper divisors (1).

746949391 is an equidigital number, since it uses as much as digits as its factorization.

746949391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 52.

The square root of 746949391 is about 27330.3748785120. The cubic root of 746949391 is about 907.3267725830.

The spelling of 746949391 in words is "seven hundred forty-six million, nine hundred forty-nine thousand, three hundred ninety-one".