42997093 has 16 divisors (see below), whose sum is σ = 45660160. Its totient is φ = 40435200.

The previous prime is 42997091. The next prime is 42997127. The reversal of 42997093 is 39079924.

It is a cyclic number.

It is not a de Polignac number, because 42997093 - 2¹ = 42997091 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 (42997091) 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, 237463 + ... + 237643.

It is an arithmetic number, because the mean of its divisors is an integer number (2853760).

Almost surely, 2^42997093 is an apocalyptic number.

It is an amenable number.

42997093 is a deficient number, since it is larger than the sum of its proper divisors (2663067).

42997093 is a wasteful number, since it uses less digits than its factorization.

42997093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 42997093 is about 6557.2168638836. The cubic root of 42997093 is about 350.3319109940.

The spelling of 42997093 in words is "forty-two million, nine hundred ninety-seven thousand, ninety-three".