1947214838 has 16 divisors (see below), whose sum is σ = 2992776336. Its totient is φ = 949683840.

The previous prime is 1947214837. The next prime is 1947214847. The reversal of 1947214838 is 8384127491.

It is a super-3 number, since 3×1947214838³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1947214792 and 1947214801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1947214837) 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, 50570 + ... + 80322.

It is an arithmetic number, because the mean of its divisors is an integer number (187048521).

Almost surely, 2^1947214838 is an apocalyptic number.

1947214838 is a deficient number, since it is larger than the sum of its proper divisors (1045561498).

1947214838 is a wasteful number, since it uses less digits than its factorization.

1947214838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30559.

The product of its digits is 387072, while the sum is 47.

The square root of 1947214838 is about 44127.2573133659. The cubic root of 1947214838 is about 1248.7378915347.

The spelling of 1947214838 in words is "one billion, nine hundred forty-seven million, two hundred fourteen thousand, eight hundred thirty-eight".