7489906 has 4 divisors (see below), whose sum is σ = 11234862. Its totient is φ = 3744952.

The previous prime is 7489871. The next prime is 7489913. The reversal of 7489906 is 6099847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6099847 = 13 ⋅469219.

It can be written as a sum of positive squares in only one way, i.e., 4100625 + 3389281 = 2025^2 + 1841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872475 + ... + 1872478.

Almost surely, 2^7489906 is an apocalyptic number.

7489906 is a deficient number, since it is larger than the sum of its proper divisors (3744956).

7489906 is a wasteful number, since it uses less digits than its factorization.

7489906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744955.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 7489906 is about 2736.7692632007. The cubic root of 7489906 is about 195.6555278022.

The spelling of 7489906 in words is "seven million, four hundred eighty-nine thousand, nine hundred six".