1922391097 has 16 divisors (see below), whose sum is σ = 2111472000. Its totient is φ = 1735741440.

The previous prime is 1922391091. The next prime is 1922391103. The reversal of 1922391097 is 7901932291.

It is an interprime number because it is at equal distance from previous prime (1922391091) and next prime (1922391103).

It is a cyclic number.

It is not a de Polignac number, because 1922391097 - 2³ = 1922391089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1922391091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240279 + ... + 1241827.

It is an arithmetic number, because the mean of its divisors is an integer number (131967000).

Almost surely, 2^1922391097 is an apocalyptic number.

It is an amenable number.

1922391097 is a deficient number, since it is larger than the sum of its proper divisors (189080903).

1922391097 is a wasteful number, since it uses less digits than its factorization.

1922391097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1922391097 is about 43845.0806476622. The cubic root of 1922391097 is about 1243.4087393422.

The spelling of 1922391097 in words is "one billion, nine hundred twenty-two million, three hundred ninety-one thousand, ninety-seven".