42697667 has 16 divisors (see below), whose sum is σ = 45906432. Its totient is φ = 39644640.

The previous prime is 42697643. The next prime is 42697673. The reversal of 42697667 is 76679624.

It is a cyclic number.

It is not a de Polignac number, because 42697667 - 2⁸ = 42697411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42691667) 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, 74492 + ... + 75062.

It is an arithmetic number, because the mean of its divisors is an integer number (2869152).

Almost surely, 2^42697667 is an apocalyptic number.

42697667 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42697667 is a deficient number, since it is larger than the sum of its proper divisors (3208765).

42697667 is a wasteful number, since it uses less digits than its factorization.

42697667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698.

The product of its digits is 762048, while the sum is 47.

The square root of 42697667 is about 6534.3451852500. The cubic root of 42697667 is about 349.5167944240.

The spelling of 42697667 in words is "forty-two million, six hundred ninety-seven thousand, six hundred sixty-seven".