740986 has 4 divisors (see below), whose sum is σ = 1111482. Its totient is φ = 370492.

The previous prime is 740969. The next prime is 740989. The reversal of 740986 is 689047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 689047 = 73 ⋅9439.

It can be written as a sum of positive squares in only one way, i.e., 670761 + 70225 = 819^2 + 265^2 .

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (740989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185245 + ... + 185248.

2⁷⁴⁰⁹⁸⁶ is an apocalyptic number.

740986 is a deficient number, since it is larger than the sum of its proper divisors (370496).

740986 is a wasteful number, since it uses less digits than its factorization.

740986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370495.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 740986 is about 860.8054367858. The cubic root of 740986 is about 90.4905721587.

The spelling of 740986 in words is "seven hundred forty thousand, nine hundred eighty-six".