749129983 has 24 divisors (see below), whose sum is σ = 896543424. Its totient is φ = 623750400.

The previous prime is 749129981. The next prime is 749130013. The reversal of 749129983 is 389921947.

It is a happy number.

It is not a de Polignac number, because 749129983 - 2¹ = 749129981 is a prime.

It is a super-2 number, since 2×749129983² = 1122391462859160578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 749129983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749129981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 563866 + ... + 565192.

It is an arithmetic number, because the mean of its divisors is an integer number (37355976).

Almost surely, 2^749129983 is an apocalyptic number.

749129983 is a deficient number, since it is larger than the sum of its proper divisors (147413441).

749129983 is a wasteful number, since it uses less digits than its factorization.

749129983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1656 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 749129983 is about 27370.2390015140. The cubic root of 749129983 is about 908.2088436373.

The spelling of 749129983 in words is "seven hundred forty-nine million, one hundred twenty-nine thousand, nine hundred eighty-three".