2981487609 has 15 divisors (see below), whose sum is σ = 4454561397. Its totient is φ = 1987330788.

The previous prime is 2981487577. The next prime is 2981487611. The reversal of 2981487609 is 9067841892.

The square root of 2981487609 is 54603.

It is a perfect power (a square), and thus also a powerful number.

2981487609 is a `hidden beast` number, since 29 + 8 + 1 + 4 + 8 + 7 + 609 = 666.

It is not a de Polignac number, because 2981487609 - 2⁵ = 2981487577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2981487109) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 488394 + ... + 494460.

Almost surely, 2^2981487609 is an apocalyptic number.

2981487609 is the 54603-rd square number.

2981487609 is the 27302-nd centered octagonal number.

It is an amenable number.

2981487609 is a deficient number, since it is larger than the sum of its proper divisors (1473073788).

2981487609 is an frugal number, since it uses more digits than its factorization.

2981487609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146 (or 6070 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The cubic root of 2981487609 is about 1439.2768374121.

The spelling of 2981487609 in words is "two billion, nine hundred eighty-one million, four hundred eighty-seven thousand, six hundred nine".