192009397 has 4 divisors (see below), whose sum is σ = 192122560. Its totient is φ = 191896236.

The previous prime is 192009371. The next prime is 192009431. The reversal of 192009397 is 793900291.

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: 793900291 = 11351 ⋅69941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-192009397 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 (192019397) 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, 53997 + ... + 57442.

It is an arithmetic number, because the mean of its divisors is an integer number (48030640).

Almost surely, 2^192009397 is an apocalyptic number.

It is an amenable number.

192009397 is a deficient number, since it is larger than the sum of its proper divisors (113163).

192009397 is a wasteful number, since it uses less digits than its factorization.

192009397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113162.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 192009397 is about 13856.7455414322. The cubic root of 192009397 is about 576.9092396494.

The spelling of 192009397 in words is "one hundred ninety-two million, nine thousand, three hundred ninety-seven".