42706961 has 4 divisors (see below), whose sum is σ = 46589424. Its totient is φ = 38824500.

The previous prime is 42706957. The next prime is 42706967. The reversal of 42706961 is 16960724.

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 not a de Polignac number, because 42706961 - 2² = 42706957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42706967) 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, 1941215 + ... + 1941236.

It is an arithmetic number, because the mean of its divisors is an integer number (11647356).

Almost surely, 2^42706961 is an apocalyptic number.

It is an amenable number.

42706961 is a deficient number, since it is larger than the sum of its proper divisors (3882463).

42706961 is a wasteful number, since it uses less digits than its factorization.

42706961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882462.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 42706961 is about 6535.0563119226. The cubic root of 42706961 is about 349.5421523545.

The spelling of 42706961 in words is "forty-two million, seven hundred six thousand, nine hundred sixty-one".