738134491 has 4 divisors (see below), whose sum is σ = 743522472. Its totient is φ = 732746512.

The previous prime is 738134473. The next prime is 738134503. The reversal of 738134491 is 194431837.

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 738134491 - 2²³ = 729745883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738114491) 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, 2693785 + ... + 2694058.

It is an arithmetic number, because the mean of its divisors is an integer number (185880618).

Almost surely, 2^738134491 is an apocalyptic number.

738134491 is a deficient number, since it is larger than the sum of its proper divisors (5387981).

738134491 is a wasteful number, since it uses less digits than its factorization.

738134491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387980.

The product of its digits is 72576, while the sum is 40.

The square root of 738134491 is about 27168.6306427100. The cubic root of 738134491 is about 903.7434576780.

The spelling of 738134491 in words is "seven hundred thirty-eight million, one hundred thirty-four thousand, four hundred ninety-one".