42770047 has 8 divisors (see below), whose sum is σ = 44236800. Its totient is φ = 41326584.

The previous prime is 42769999. The next prime is 42770069. The reversal of 42770047 is 74007724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42770047 - 2²³ = 34381439 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 (42770347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047 + ... + 9472.

It is an arithmetic number, because the mean of its divisors is an integer number (5529600).

Almost surely, 2^42770047 is an apocalyptic number.

42770047 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42770047 is a deficient number, since it is larger than the sum of its proper divisors (1466753).

42770047 is a wasteful number, since it uses less digits than its factorization.

42770047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11645.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 42770047 is about 6539.8812680354. The cubic root of 42770047 is about 349.7141802606.

The spelling of 42770047 in words is "forty-two million, seven hundred seventy thousand, forty-seven".