420277699 has 4 divisors (see below), whose sum is σ = 420542464. Its totient is φ = 420012936.

The previous prime is 420277691. The next prime is 420277727. The reversal of 420277699 is 996772024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 420277699 - 2³ = 420277691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420277691) 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, 129987 + ... + 133180.

It is an arithmetic number, because the mean of its divisors is an integer number (105135616).

Almost surely, 2^420277699 is an apocalyptic number.

420277699 is a deficient number, since it is larger than the sum of its proper divisors (264765).

420277699 is a wasteful number, since it uses less digits than its factorization.

420277699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264764.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 420277699 is about 20500.6755742341. The cubic root of 420277699 is about 749.0522541341.

The spelling of 420277699 in words is "four hundred twenty million, two hundred seventy-seven thousand, six hundred ninety-nine".