426763977 has 4 divisors (see below), whose sum is σ = 569018640. Its totient is φ = 284509316.

The previous prime is 426763963. The next prime is 426763999. The reversal of 426763977 is 779367624.

It is a happy number.

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 426763977 - 2¹² = 426759881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426763907) 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, 71127327 + ... + 71127332.

It is an arithmetic number, because the mean of its divisors is an integer number (142254660).

Almost surely, 2^426763977 is an apocalyptic number.

It is an amenable number.

426763977 is a deficient number, since it is larger than the sum of its proper divisors (142254663).

426763977 is a wasteful number, since it uses less digits than its factorization.

426763977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142254662.

The product of its digits is 2667168, while the sum is 51.

The square root of 426763977 is about 20658.2665536100. The cubic root of 426763977 is about 752.8860515854.

The spelling of 426763977 in words is "four hundred twenty-six million, seven hundred sixty-three thousand, nine hundred seventy-seven".