913139386 has 8 divisors (see below), whose sum is σ = 1369851840. Its totient is φ = 456522108.

The previous prime is 913139371. The next prime is 913139417. The reversal of 913139386 is 683931319.

It is a happy number.

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

It is a super-3 number, since 3×913139386³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9525 + ... + 43783.

It is an arithmetic number, because the mean of its divisors is an integer number (171231480).

Almost surely, 2^913139386 is an apocalyptic number.

913139386 is a deficient number, since it is larger than the sum of its proper divisors (456712454).

913139386 is a wasteful number, since it uses less digits than its factorization.

913139386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47588.

The product of its digits is 104976, while the sum is 43.

The square root of 913139386 is about 30218.1962731067. The cubic root of 913139386 is about 970.1651987741.

The spelling of 913139386 in words is "nine hundred thirteen million, one hundred thirty-nine thousand, three hundred eighty-six".