739289689 has 4 divisors (see below), whose sum is σ = 741813156. Its totient is φ = 736766224.

The previous prime is 739289653. The next prime is 739289717. The reversal of 739289689 is 986982937.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 707985664 + 31304025 = 26608^2 + 5595^2 .

It is a cyclic number.

It is not a de Polignac number, because 739289689 - 2²¹ = 737192537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (739289389) 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, 1261294 + ... + 1261879.

It is an arithmetic number, because the mean of its divisors is an integer number (185453289).

Almost surely, 2^739289689 is an apocalyptic number.

It is an amenable number.

739289689 is a deficient number, since it is larger than the sum of its proper divisors (2523467).

739289689 is a wasteful number, since it uses less digits than its factorization.

739289689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523466.

The product of its digits is 11757312, while the sum is 61.

The square root of 739289689 is about 27189.8821071368. The cubic root of 739289689 is about 904.2146719310.

The spelling of 739289689 in words is "seven hundred thirty-nine million, two hundred eighty-nine thousand, six hundred eighty-nine".