42723377 has 2 divisors, whose sum is σ = 42723378. Its totient is φ = 42723376.

The previous prime is 42723371. The next prime is 42723389. The reversal of 42723377 is 77332724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42562576 + 160801 = 6524^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 42723377 - 2⁴ = 42723361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42723371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21361688 + 21361689.

It is an arithmetic number, because the mean of its divisors is an integer number (21361689).

Almost surely, 2^42723377 is an apocalyptic number.

It is an amenable number.

42723377 is a deficient number, since it is larger than the sum of its proper divisors (1).

42723377 is an equidigital number, since it uses as much as digits as its factorization.

42723377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392, while the sum is 35.

The square root of 42723377 is about 6536.3121865468. The cubic root of 42723377 is about 349.5869331021.

The spelling of 42723377 in words is "forty-two million, seven hundred twenty-three thousand, three hundred seventy-seven".