1398476959 has 4 divisors (see below), whose sum is σ = 1525611240. Its totient is φ = 1271342680.

The previous prime is 1398476953. The next prime is 1398476999. The reversal of 1398476959 is 9596748931.

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 1398476959 - 2⁵ = 1398476927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1398476897 and 1398476906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398476953) 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, 63567124 + ... + 63567145.

It is an arithmetic number, because the mean of its divisors is an integer number (381402810).

Almost surely, 2^1398476959 is an apocalyptic number.

1398476959 is a deficient number, since it is larger than the sum of its proper divisors (127134281).

1398476959 is a wasteful number, since it uses less digits than its factorization.

1398476959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127134280.

The product of its digits is 14696640, while the sum is 61.

The square root of 1398476959 is about 37396.2158379695. The cubic root of 1398476959 is about 1118.2831260459.

The spelling of 1398476959 in words is "one billion, three hundred ninety-eight million, four hundred seventy-six thousand, nine hundred fifty-nine".