1497988379 has 4 divisors (see below), whose sum is σ = 1498349160. Its totient is φ = 1497627600.

The previous prime is 1497988369. The next prime is 1497988411. The reversal of 1497988379 is 9738897941.

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

It is a cyclic number.

It is not a de Polignac number, because 1497988379 - 2¹² = 1497984283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1497988319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174089 + ... + 182490.

It is an arithmetic number, because the mean of its divisors is an integer number (374587290).

Almost surely, 2^1497988379 is an apocalyptic number.

1497988379 is a deficient number, since it is larger than the sum of its proper divisors (360781).

1497988379 is an equidigital number, since it uses as much as digits as its factorization.

1497988379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360780.

The product of its digits is 27433728, while the sum is 65.

The square root of 1497988379 is about 38703.8548338534. The cubic root of 1497988379 is about 1144.2022955845.

The spelling of 1497988379 in words is "one billion, four hundred ninety-seven million, nine hundred eighty-eight thousand, three hundred seventy-nine".