1427925973 has 4 divisors (see below), whose sum is σ = 1428628320. Its totient is φ = 1427223628.

The previous prime is 1427925971. The next prime is 1427925979. The reversal of 1427925973 is 3795297241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3795297241 = 1667 ⋅2276723.

It is a cyclic number.

It is not a de Polignac number, because 1427925973 - 2¹ = 1427925971 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 (1427925971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348115 + ... + 352192.

It is an arithmetic number, because the mean of its divisors is an integer number (357157080).

Almost surely, 2^1427925973 is an apocalyptic number.

It is an amenable number.

1427925973 is a deficient number, since it is larger than the sum of its proper divisors (702347).

1427925973 is an equidigital number, since it uses as much as digits as its factorization.

1427925973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702346.

The product of its digits is 952560, while the sum is 49.

The square root of 1427925973 is about 37787.9077616107. The cubic root of 1427925973 is about 1126.0782348652.

The spelling of 1427925973 in words is "one billion, four hundred twenty-seven million, nine hundred twenty-five thousand, nine hundred seventy-three".