42003977 has 8 divisors (see below), whose sum is σ = 44855040. Its totient is φ = 39246480.

The previous prime is 42003953. The next prime is 42003979. The reversal of 42003977 is 77930024.

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 42003977 - 2²⁰ = 40955401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42003979) 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, 22463 + ... + 24260.

It is an arithmetic number, because the mean of its divisors is an integer number (5606880).

Almost surely, 2^42003977 is an apocalyptic number.

It is an amenable number.

42003977 is a deficient number, since it is larger than the sum of its proper divisors (2851063).

42003977 is a wasteful number, since it uses less digits than its factorization.

42003977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46783.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 42003977 is about 6481.0475233561. The cubic root of 42003977 is about 347.6136356963.

The spelling of 42003977 in words is "forty-two million, three thousand, nine hundred seventy-seven".