13770814 has 4 divisors (see below), whose sum is σ = 20656224. Its totient is φ = 6885406.

The previous prime is 13770803. The next prime is 13770817. The reversal of 13770814 is 41807731.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13770817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442702 + ... + 3442705.

It is an arithmetic number, because the mean of its divisors is an integer number (5164056).

Almost surely, 2^13770814 is an apocalyptic number.

13770814 is a deficient number, since it is larger than the sum of its proper divisors (6885410).

13770814 is an equidigital number, since it uses as much as digits as its factorization.

13770814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885409.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 13770814 is about 3710.9047414344. The cubic root of 13770814 is about 239.6918150761.

The spelling of 13770814 in words is "thirteen million, seven hundred seventy thousand, eight hundred fourteen".