42897377 has 8 divisors (see below), whose sum is σ = 43835400. Its totient is φ = 41969664.

The previous prime is 42897347. The next prime is 42897431. The reversal of 42897377 is 77379824.

It can be written as a sum of positive squares in 4 ways, for example, as 73441 + 42823936 = 271^2 + 6544^2 .

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 42897377 - 2⁶ = 42897313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42897347) 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, 6149 + ... + 11117.

It is an arithmetic number, because the mean of its divisors is an integer number (5479425).

Almost surely, 2^42897377 is an apocalyptic number.

It is an amenable number.

42897377 is a deficient number, since it is larger than the sum of its proper divisors (938023).

42897377 is an equidigital number, since it uses as much as digits as its factorization.

42897377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155.

The product of its digits is 592704, while the sum is 47.

The square root of 42897377 is about 6549.6089196226. The cubic root of 42897377 is about 350.0608792059.

The spelling of 42897377 in words is "forty-two million, eight hundred ninety-seven thousand, three hundred seventy-seven".