745986 has 16 divisors (see below), whose sum is σ = 1507968. Its totient is φ = 246000.

The previous prime is 745981. The next prime is 745993. The reversal of 745986 is 689547.

It is a super-2 number, since 2×745986² = 1112990224392, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 745986.

It is not an unprimeable number, because it can be changed into a prime (745981) by changing a digit.

745986 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (94248).

2⁷⁴⁵⁹⁸⁶ is an apocalyptic number.

745986 is an abundant number, since it is smaller than the sum of its proper divisors (761982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745986 is a wasteful number, since it uses less digits than its factorization.

745986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its digits is 60480, while the sum is 39.

The square root of 745986 is about 863.7048106848. The cubic root of 745986 is about 90.6936524584.

The spelling of 745986 in words is "seven hundred forty-five thousand, nine hundred eighty-six".