1409923973 has 4 divisors (see below), whose sum is σ = 1419386700. Its totient is φ = 1400461248.

The previous prime is 1409923969. The next prime is 1409923997. The reversal of 1409923973 is 3793299041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 363207364 + 1046716609 = 19058^2 + 32353^2 .

It is a cyclic number.

It is not a de Polignac number, because 1409923973 - 2² = 1409923969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409923673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4731140 + ... + 4731437.

It is an arithmetic number, because the mean of its divisors is an integer number (354846675).

Almost surely, 2^1409923973 is an apocalyptic number.

It is an amenable number.

1409923973 is a deficient number, since it is larger than the sum of its proper divisors (9462727).

1409923973 is an equidigital number, since it uses as much as digits as its factorization.

1409923973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9462726.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 1409923973 is about 37548.9543529510. The cubic root of 1409923973 is about 1121.3260158164.

The spelling of 1409923973 in words is "one billion, four hundred nine million, nine hundred twenty-three thousand, nine hundred seventy-three".