42197761 has 8 divisors (see below), whose sum is σ = 42793920. Its totient is φ = 41605392.

The previous prime is 42197737. The next prime is 42197767. The reversal of 42197761 is 16779124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42197761 - 2⁷ = 42197633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42197761.

It is not an unprimeable number, because it can be changed into a prime (42197767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26946 + ... + 28468.

It is an arithmetic number, because the mean of its divisors is an integer number (5349240).

Almost surely, 2^42197761 is an apocalyptic number.

It is an amenable number.

42197761 is a deficient number, since it is larger than the sum of its proper divisors (596159).

42197761 is a wasteful number, since it uses less digits than its factorization.

42197761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its digits is 21168, while the sum is 37.

The square root of 42197761 is about 6495.9803725073. The cubic root of 42197761 is about 348.1473838437.

The spelling of 42197761 in words is "forty-two million, one hundred ninety-seven thousand, seven hundred sixty-one".