749402587 has 4 divisors (see below), whose sum is σ = 773576896. Its totient is φ = 725228280.

The previous prime is 749402573. The next prime is 749402609. The reversal of 749402587 is 785204947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785204947 = 103 ⋅7623349.

It is a cyclic number.

It is not a de Polignac number, because 749402587 - 2¹¹ = 749400539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749402557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12087108 + ... + 12087169.

It is an arithmetic number, because the mean of its divisors is an integer number (193394224).

Almost surely, 2^749402587 is an apocalyptic number.

749402587 is a deficient number, since it is larger than the sum of its proper divisors (24174309).

749402587 is a wasteful number, since it uses less digits than its factorization.

749402587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24174308.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 749402587 is about 27375.2184831464. The cubic root of 749402587 is about 908.3189942316.

The spelling of 749402587 in words is "seven hundred forty-nine million, four hundred two thousand, five hundred eighty-seven".