42620077 has 4 divisors (see below), whose sum is σ = 42736576. Its totient is φ = 42503580.

The previous prime is 42620069. The next prime is 42620087. The reversal of 42620077 is 77002624.

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 42620077 - 2³ = 42620069 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 (42620027) 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, 57699 + ... + 58432.

It is an arithmetic number, because the mean of its divisors is an integer number (10684144).

Almost surely, 2^42620077 is an apocalyptic number.

It is an amenable number.

42620077 is a deficient number, since it is larger than the sum of its proper divisors (116499).

42620077 is a wasteful number, since it uses less digits than its factorization.

42620077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116498.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 42620077 is about 6528.4053948878. The cubic root of 42620077 is about 349.3049526269.

It can be divided in two parts, 426 and 20077, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 42620077 in words is "forty-two million, six hundred twenty thousand, seventy-seven".