749891001 has 8 divisors (see below), whose sum is σ = 1014778144. Its totient is φ = 492465600.

The previous prime is 749890997. The next prime is 749891027. The reversal of 749891001 is 100198947.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 749891001 - 2² = 749890997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749891041) 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 7 ways as a sum of consecutive naturals, for example, 1865200 + ... + 1865601.

It is an arithmetic number, because the mean of its divisors is an integer number (126847268).

Almost surely, 2^749891001 is an apocalyptic number.

It is an amenable number.

749891001 is a deficient number, since it is larger than the sum of its proper divisors (264887143).

749891001 is a wasteful number, since it uses less digits than its factorization.

749891001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730871.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 749891001 is about 27384.1377625807. The cubic root of 749891001 is about 908.5162799887.

The spelling of 749891001 in words is "seven hundred forty-nine million, eight hundred ninety-one thousand, one".