1377472399 has 8 divisors (see below), whose sum is σ = 1394774640. Its totient is φ = 1360187136.

The previous prime is 1377472387. The next prime is 1377472417. The reversal of 1377472399 is 9932747731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1377472399 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 (1377472309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260409 + ... + 265645.

It is an arithmetic number, because the mean of its divisors is an integer number (174346830).

Almost surely, 2^1377472399 is an apocalyptic number.

1377472399 is a deficient number, since it is larger than the sum of its proper divisors (17302241).

1377472399 is an equidigital number, since it uses as much as digits as its factorization.

1377472399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489.

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

The square root of 1377472399 is about 37114.3152839979. The cubic root of 1377472399 is about 1112.6561390747.

The spelling of 1377472399 in words is "one billion, three hundred seventy-seven million, four hundred seventy-two thousand, three hundred ninety-nine".