42737891 has 8 divisors (see below), whose sum is σ = 48900864. Its totient is φ = 36589320.

The previous prime is 42737869. The next prime is 42737917. The reversal of 42737891 is 19873724.

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 42737891 - 2¹⁴ = 42721507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42737801) 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, 3776 + ... + 9986.

It is an arithmetic number, because the mean of its divisors is an integer number (6112608).

Almost surely, 2^42737891 is an apocalyptic number.

42737891 is a deficient number, since it is larger than the sum of its proper divisors (6162973).

42737891 is an equidigital number, since it uses as much as digits as its factorization.

42737891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201.

The product of its digits is 84672, while the sum is 41.

The square root of 42737891 is about 6537.4223513553. The cubic root of 42737891 is about 349.6265158835.

The spelling of 42737891 in words is "forty-two million, seven hundred thirty-seven thousand, eight hundred ninety-one".