746391 has 4 divisors (see below), whose sum is σ = 995192. Its totient is φ = 497592.

The previous prime is 746371. The next prime is 746411. The reversal of 746391 is 193647.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (746371) and next prime (746411).

It is a de Polignac number, because none of the positive numbers 2^k-746391 is a prime.

It is a D-number.

It is a Duffinian number.

746391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124396 + ... + 124401.

It is an arithmetic number, because the mean of its divisors is an integer number (248798).

2⁷⁴⁶³⁹¹ is an apocalyptic number.

746391 is a deficient number, since it is larger than the sum of its proper divisors (248801).

746391 is a wasteful number, since it uses less digits than its factorization.

746391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248800.

The product of its digits is 4536, while the sum is 30.

The square root of 746391 is about 863.9392339742. The cubic root of 746391 is about 90.7100621873.

The spelling of 746391 in words is "seven hundred forty-six thousand, three hundred ninety-one".