1377474705 has 24 divisors (see below), whose sum is σ = 2394862080. Its totient is φ = 732425760.

The previous prime is 1377474701. The next prime is 1377474713. The reversal of 1377474705 is 5074747731.

It is a happy number.

1377474705 is a `hidden beast` number, since 137 + 7 + 47 + 470 + 5 = 666.

It is not a de Polignac number, because 1377474705 - 2² = 1377474701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1377474701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31345 + ... + 61134.

It is an arithmetic number, because the mean of its divisors is an integer number (99785920).

Almost surely, 2^1377474705 is an apocalyptic number.

1377474705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1377474705 is a deficient number, since it is larger than the sum of its proper divisors (1017387375).

1377474705 is a wasteful number, since it uses less digits than its factorization.

1377474705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92821 (or 92818 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The square root of 1377474705 is about 37114.3463501649. The cubic root of 1377474705 is about 1112.6567599664.

The spelling of 1377474705 in words is "one billion, three hundred seventy-seven million, four hundred seventy-four thousand, seven hundred five".