3538399947 has 8 divisors (see below), whose sum is σ = 4845376656. Its totient is φ = 2295178272.

The previous prime is 3538399889. The next prime is 3538399957. The reversal of 3538399947 is 7499938353.

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

It is not a de Polignac number, because 3538399947 - 2¹⁵ = 3538367179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3538399957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15938628 + ... + 15938849.

It is an arithmetic number, because the mean of its divisors is an integer number (605672082).

Almost surely, 2^3538399947 is an apocalyptic number.

3538399947 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3538399947 is a deficient number, since it is larger than the sum of its proper divisors (1306976709).

3538399947 is a wasteful number, since it uses less digits than its factorization.

3538399947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31877517.

The product of its digits is 22044960, while the sum is 60.

The square root of 3538399947 is about 59484.4513045216. The cubic root of 3538399947 is about 1523.8269143161.

The spelling of 3538399947 in words is "three billion, five hundred thirty-eight million, three hundred ninety-nine thousand, nine hundred forty-seven".