749619671 has 4 divisors (see below), whose sum is σ = 749778744. Its totient is φ = 749460600.

The previous prime is 749619623. The next prime is 749619691. The reversal of 749619671 is 176916947.

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 749619671 - 2¹⁸ = 749357527 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 (749619691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72245 + ... + 81966.

It is an arithmetic number, because the mean of its divisors is an integer number (187444686).

Almost surely, 2^749619671 is an apocalyptic number.

749619671 is a deficient number, since it is larger than the sum of its proper divisors (159073).

749619671 is a wasteful number, since it uses less digits than its factorization.

749619671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159072.

The product of its digits is 571536, while the sum is 50.

The square root of 749619671 is about 27379.1831689698. The cubic root of 749619671 is about 908.4066918579.

The spelling of 749619671 in words is "seven hundred forty-nine million, six hundred nineteen thousand, six hundred seventy-one".