42960891 has 8 divisors (see below), whose sum is σ = 57505104. Its totient is φ = 28528640.

The previous prime is 42960889. The next prime is 42960943. The reversal of 42960891 is 19806924.

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 42960891 - 2¹ = 42960889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42960091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27090 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (7188138).

Almost surely, 2^42960891 is an apocalyptic number.

42960891 is a deficient number, since it is larger than the sum of its proper divisors (14544213).

42960891 is a wasteful number, since it uses less digits than its factorization.

42960891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55981.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 42960891 is about 6554.4558126514. The cubic root of 42960891 is about 350.2335611127.

The spelling of 42960891 in words is "forty-two million, nine hundred sixty thousand, eight hundred ninety-one".