734040691 has 4 divisors (see below), whose sum is σ = 734181712. Its totient is φ = 733899672.

The previous prime is 734040683. The next prime is 734040701. The reversal of 734040691 is 196040437.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 734040691 - 2³ = 734040683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (734040631) 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, 62391 + ... + 73216.

It is an arithmetic number, because the mean of its divisors is an integer number (183545428).

Almost surely, 2^734040691 is an apocalyptic number.

734040691 is a deficient number, since it is larger than the sum of its proper divisors (141021).

734040691 is a wasteful number, since it uses less digits than its factorization.

734040691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141020.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 734040691 is about 27093.1853239888. The cubic root of 734040691 is about 902.0695956481.

The spelling of 734040691 in words is "seven hundred thirty-four million, forty thousand, six hundred ninety-one".