42772351 has 2 divisors, whose sum is σ = 42772352. Its totient is φ = 42772350.

The previous prime is 42772339. The next prime is 42772381. The reversal of 42772351 is 15327724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42772351 - 2⁵ = 42772319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42772321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21386175 + 21386176.

It is an arithmetic number, because the mean of its divisors is an integer number (21386176).

Almost surely, 2^42772351 is an apocalyptic number.

42772351 is a deficient number, since it is larger than the sum of its proper divisors (1).

42772351 is an equidigital number, since it uses as much as digits as its factorization.

42772351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 42772351 is about 6540.0574156501. The cubic root of 42772351 is about 349.7204597877.

The spelling of 42772351 in words is "forty-two million, seven hundred seventy-two thousand, three hundred fifty-one".