1370840077 has 4 divisors (see below), whose sum is σ = 1371049596. Its totient is φ = 1370630560.

The previous prime is 1370840017. The next prime is 1370840083. The reversal of 1370840077 is 7700480731.

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 1244255076 + 126585001 = 35274^2 + 11251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1370840077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370840017) 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, 94618 + ... + 108139.

It is an arithmetic number, because the mean of its divisors is an integer number (342762399).

Almost surely, 2^1370840077 is an apocalyptic number.

It is an amenable number.

1370840077 is a deficient number, since it is larger than the sum of its proper divisors (209519).

1370840077 is an equidigital number, since it uses as much as digits as its factorization.

1370840077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209518.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 1370840077 is about 37024.8575554316. The cubic root of 1370840077 is about 1110.8675081265.

The spelling of 1370840077 in words is "one billion, three hundred seventy million, eight hundred forty thousand, seventy-seven".