340699777 has 4 divisors (see below), whose sum is σ = 371672496. Its totient is φ = 309727060.

The previous prime is 340699763. The next prime is 340699783. The reversal of 340699777 is 777996043.

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 340699777 - 2⁷ = 340699649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340699717) 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, 15486343 + ... + 15486364.

It is an arithmetic number, because the mean of its divisors is an integer number (92918124).

Almost surely, 2^340699777 is an apocalyptic number.

It is an amenable number.

340699777 is a deficient number, since it is larger than the sum of its proper divisors (30972719).

340699777 is a wasteful number, since it uses less digits than its factorization.

340699777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30972718.

The product of its (nonzero) digits is 2000376, while the sum is 52.

The square root of 340699777 is about 18458.0545291209. The cubic root of 340699777 is about 698.4317114602.

The spelling of 340699777 in words is "three hundred forty million, six hundred ninety-nine thousand, seven hundred seventy-seven".