1487729969 has 12 divisors (see below), whose sum is σ = 1638696192. Its totient is φ = 1349651160.

The previous prime is 1487729951. The next prime is 1487729987. The reversal of 1487729969 is 9699277841.

It is an interprime number because it is at equal distance from previous prime (1487729951) and next prime (1487729987).

It is not a de Polignac number, because 1487729969 - 2⁸ = 1487729713 is a prime.

It is a super-2 number, since 2×1487729969² = 4426680921321481922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1487722969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46304 + ... + 71550.

It is an arithmetic number, because the mean of its divisors is an integer number (136558016).

Almost surely, 2^1487729969 is an apocalyptic number.

It is an amenable number.

1487729969 is a deficient number, since it is larger than the sum of its proper divisors (150966223).

1487729969 is a wasteful number, since it uses less digits than its factorization.

1487729969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25756 (or 25745 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 62.

The square root of 1487729969 is about 38571.1027713754. The cubic root of 1487729969 is about 1141.5844309483.

The spelling of 1487729969 in words is "one billion, four hundred eighty-seven million, seven hundred twenty-nine thousand, nine hundred sixty-nine".