42070777 has 4 divisors (see below), whose sum is σ = 48080896. Its totient is φ = 36060660.

The previous prime is 42070771. The next prime is 42070783. The reversal of 42070777 is 77707024.

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 an interprime number because it is at equal distance from previous prime (42070771) and next prime (42070783).

It is a cyclic number.

It is not a de Polignac number, because 42070777 - 2¹¹ = 42068729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42070771) 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, 3005049 + ... + 3005062.

It is an arithmetic number, because the mean of its divisors is an integer number (12020224).

Almost surely, 2^42070777 is an apocalyptic number.

It is an amenable number.

42070777 is a deficient number, since it is larger than the sum of its proper divisors (6010119).

42070777 is an equidigital number, since it uses as much as digits as its factorization.

42070777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010118.

The product of its (nonzero) digits is 19208, while the sum is 34.

The square root of 42070777 is about 6486.1989639542. The cubic root of 42070777 is about 347.7978110526.

The spelling of 42070777 in words is "forty-two million, seventy thousand, seven hundred seventy-seven".