42970615 has 4 divisors (see below), whose sum is σ = 51564744. Its totient is φ = 34376488.

The previous prime is 42970597. The next prime is 42970621. The reversal of 42970615 is 51607924.

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 42970615 - 2¹⁵ = 42937847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4297057 + ... + 4297066.

It is an arithmetic number, because the mean of its divisors is an integer number (12891186).

Almost surely, 2^42970615 is an apocalyptic number.

42970615 is a deficient number, since it is larger than the sum of its proper divisors (8594129).

42970615 is an equidigital number, since it uses as much as digits as its factorization.

42970615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8594128.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 42970615 is about 6555.1975561382. The cubic root of 42970615 is about 350.2599837043.

The spelling of 42970615 in words is "forty-two million, nine hundred seventy thousand, six hundred fifteen".