42670297 has 4 divisors (see below), whose sum is σ = 42736896. Its totient is φ = 42603700.

The previous prime is 42670283. The next prime is 42670301. The reversal of 42670297 is 79207624.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42670297 is a prime.

It is a super-3 number, since 3×42670297³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42670097) 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, 32329 + ... + 33622.

It is an arithmetic number, because the mean of its divisors is an integer number (10684224).

Almost surely, 2^42670297 is an apocalyptic number.

It is an amenable number.

42670297 is a deficient number, since it is larger than the sum of its proper divisors (66599).

42670297 is an equidigital number, since it uses as much as digits as its factorization.

42670297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66598.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 42670297 is about 6532.2505310192. The cubic root of 42670297 is about 349.4420962018.

The spelling of 42670297 in words is "forty-two million, six hundred seventy thousand, two hundred ninety-seven".