1973097227 has 4 divisors (see below), whose sum is σ = 1991537496. Its totient is φ = 1954656960.

The previous prime is 1973097223. The next prime is 1973097239. The reversal of 1973097227 is 7227903791.

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

It is a cyclic number.

It is not a de Polignac number, because 1973097227 - 2² = 1973097223 is a prime.

It is a super-2 number, since 2×1973097227² = 7786225334390179058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1973097223) 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, 9219974 + ... + 9220187.

It is an arithmetic number, because the mean of its divisors is an integer number (497884374).

Almost surely, 2^1973097227 is an apocalyptic number.

1973097227 is a deficient number, since it is larger than the sum of its proper divisors (18440269).

1973097227 is a wasteful number, since it uses less digits than its factorization.

1973097227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18440268.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 1973097227 is about 44419.5590590451. The cubic root of 1973097227 is about 1254.2463005712.

The spelling of 1973097227 in words is "one billion, nine hundred seventy-three million, ninety-seven thousand, two hundred twenty-seven".