740694989 has 4 divisors (see below), whose sum is σ = 740807424. Its totient is φ = 740582556.

The previous prime is 740694961. The next prime is 740695009. The reversal of 740694989 is 989496047.

740694989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989496047 = 10399 ⋅95153.

It is a cyclic number.

It is not a de Polignac number, because 740694989 - 2²⁴ = 723917773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740694959) 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, 45677 + ... + 59730.

It is an arithmetic number, because the mean of its divisors is an integer number (185201856).

Almost surely, 2^740694989 is an apocalyptic number.

It is an amenable number.

740694989 is a deficient number, since it is larger than the sum of its proper divisors (112435).

740694989 is a wasteful number, since it uses less digits than its factorization.

740694989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112434.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 740694989 is about 27215.7121714645. The cubic root of 740694989 is about 904.7872434151.

The spelling of 740694989 in words is "seven hundred forty million, six hundred ninety-four thousand, nine hundred eighty-nine".