1087489447 has 8 divisors (see below), whose sum is σ = 1192376592. Its totient is φ = 983606400.

The previous prime is 1087489433. The next prime is 1087489451. The reversal of 1087489447 is 7449847801.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087489447 is a prime.

It is a super-3 number, since 3×1087489447³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1087489394 and 1087489403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087487447) 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, 248754 + ... + 253087.

It is an arithmetic number, because the mean of its divisors is an integer number (149047074).

Almost surely, 2^1087489447 is an apocalyptic number.

1087489447 is a deficient number, since it is larger than the sum of its proper divisors (104887145).

1087489447 is a wasteful number, since it uses less digits than its factorization.

1087489447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502049.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The square root of 1087489447 is about 32977.1048911211. The cubic root of 1087489447 is about 1028.3517317379.

The spelling of 1087489447 in words is "one billion, eighty-seven million, four hundred eighty-nine thousand, four hundred forty-seven".