749906 has 4 divisors (see below), whose sum is σ = 1124862. Its totient is φ = 374952.

The previous prime is 749899. The next prime is 749909. The reversal of 749906 is 609947.

It is a happy number.

749906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609947 = 13 ⋅46919.

It can be written as a sum of positive squares in only one way, i.e., 748225 + 1681 = 865^2 + 41^2 .

It is not an unprimeable number, because it can be changed into a prime (749909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187475 + ... + 187478.

2⁷⁴⁹⁹⁰⁶ is an apocalyptic number.

749906 is a deficient number, since it is larger than the sum of its proper divisors (374956).

749906 is a wasteful number, since it uses less digits than its factorization.

749906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374955.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 749906 is about 865.9711311585. The cubic root of 749906 is about 90.8522337200.

The spelling of 749906 in words is "seven hundred forty-nine thousand, nine hundred six".