425267977 has 4 divisors (see below), whose sum is σ = 439932420. Its totient is φ = 410603536.

The previous prime is 425267963. The next prime is 425267987. The reversal of 425267977 is 779762524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 280763536 + 144504441 = 16756^2 + 12021^2 .

It is a cyclic number.

It is not a de Polignac number, because 425267977 - 2⁷ = 425267849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425267977.

It is not an unprimeable number, because it can be changed into a prime (425267917) 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, 7332178 + ... + 7332235.

It is an arithmetic number, because the mean of its divisors is an integer number (109983105).

Almost surely, 2^425267977 is an apocalyptic number.

It is an amenable number.

425267977 is a deficient number, since it is larger than the sum of its proper divisors (14664443).

425267977 is a wasteful number, since it uses less digits than its factorization.

425267977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14664442.

The product of its digits is 1481760, while the sum is 49.

The square root of 425267977 is about 20622.0265008073. The cubic root of 425267977 is about 752.0052866923.

The spelling of 425267977 in words is "four hundred twenty-five million, two hundred sixty-seven thousand, nine hundred seventy-seven".