731966 has 4 divisors (see below), whose sum is σ = 1097952. Its totient is φ = 365982.

The previous prime is 731957. The next prime is 731981. The reversal of 731966 is 669137.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

731966 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182990 + ... + 182993.

It is an arithmetic number, because the mean of its divisors is an integer number (274488).

2⁷³¹⁹⁶⁶ is an apocalyptic number.

731966 is a deficient number, since it is larger than the sum of its proper divisors (365986).

731966 is a wasteful number, since it uses less digits than its factorization.

731966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365985.

The product of its digits is 6804, while the sum is 32.

The square root of 731966 is about 855.5501154228. The cubic root of 731966 is about 90.1218924523.

The spelling of 731966 in words is "seven hundred thirty-one thousand, nine hundred sixty-six".