42946737 has 4 divisors (see below), whose sum is σ = 57262320. Its totient is φ = 28631156.

The previous prime is 42946733. The next prime is 42946753. The reversal of 42946737 is 73764924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42946737 - 2² = 42946733 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42946733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7157787 + ... + 7157792.

It is an arithmetic number, because the mean of its divisors is an integer number (14315580).

Almost surely, 2^42946737 is an apocalyptic number.

It is an amenable number.

42946737 is a deficient number, since it is larger than the sum of its proper divisors (14315583).

42946737 is a wasteful number, since it uses less digits than its factorization.

42946737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14315582.

The product of its digits is 254016, while the sum is 42.

The square root of 42946737 is about 6553.3760002002. The cubic root of 42946737 is about 350.1950939533.

The spelling of 42946737 in words is "forty-two million, nine hundred forty-six thousand, seven hundred thirty-seven".