123473906 has 16 divisors (see below), whose sum is σ = 187550424. Its totient is φ = 60962304.

The previous prime is 123473897. The next prime is 123473927. The reversal of 123473906 is 609374321.

It can be written as a sum of positive squares in 4 ways, for example, as 123321025 + 152881 = 11105^2 + 391^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53186 + ... + 55458.

Almost surely, 2^123473906 is an apocalyptic number.

123473906 is a deficient number, since it is larger than the sum of its proper divisors (64076518).

123473906 is a wasteful number, since it uses less digits than its factorization.

123473906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 123473906 is about 11111.8812988620. The cubic root of 123473906 is about 497.9568706164.

The spelling of 123473906 in words is "one hundred twenty-three million, four hundred seventy-three thousand, nine hundred six".