42797887 has 8 divisors (see below), whose sum is σ = 48195072. Its totient is φ = 37651800.

The previous prime is 42797851. The next prime is 42797893. The reversal of 42797887 is 78879724.

It is a happy number.

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 42797887 - 2¹¹ = 42795839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42797837) 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, 62413 + ... + 63094.

It is an arithmetic number, because the mean of its divisors is an integer number (6024384).

Almost surely, 2^42797887 is an apocalyptic number.

42797887 is a deficient number, since it is larger than the sum of its proper divisors (5397185).

42797887 is a wasteful number, since it uses less digits than its factorization.

42797887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125549.

The product of its digits is 1580544, while the sum is 52.

The square root of 42797887 is about 6542.0094007881. The cubic root of 42797887 is about 349.7900427840.

The spelling of 42797887 in words is "forty-two million, seven hundred ninety-seven thousand, eight hundred eighty-seven".