42064277 has 4 divisors (see below), whose sum is σ = 43042560. Its totient is φ = 41085996.

The previous prime is 42064259. The next prime is 42064283. The reversal of 42064277 is 77246024.

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 42064277 - 2⁶ = 42064213 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 (42064247) 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, 489077 + ... + 489162.

It is an arithmetic number, because the mean of its divisors is an integer number (10760640).

Almost surely, 2^42064277 is an apocalyptic number.

It is an amenable number.

42064277 is a deficient number, since it is larger than the sum of its proper divisors (978283).

42064277 is an equidigital number, since it uses as much as digits as its factorization.

42064277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978282.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 42064277 is about 6485.6978807219. The cubic root of 42064277 is about 347.7798983638.

The spelling of 42064277 in words is "forty-two million, sixty-four thousand, two hundred seventy-seven".