1163870949 has 16 divisors (see below), whose sum is σ = 1699773120. Its totient is φ = 705089280.

The previous prime is 1163870947. The next prime is 1163870971. The reversal of 1163870949 is 9490783611.

It is a happy number.

It is not a de Polignac number, because 1163870949 - 2¹ = 1163870947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1163870898 and 1163870907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163870947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391987 + ... + 394944.

It is an arithmetic number, because the mean of its divisors is an integer number (106235820).

Almost surely, 2^1163870949 is an apocalyptic number.

It is an amenable number.

1163870949 is a deficient number, since it is larger than the sum of its proper divisors (535902171).

1163870949 is a wasteful number, since it uses less digits than its factorization.

1163870949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786980.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 1163870949 is about 34115.5528901409. The cubic root of 1163870949 is about 1051.8850337844.

The spelling of 1163870949 in words is "one billion, one hundred sixty-three million, eight hundred seventy thousand, nine hundred forty-nine".