1487987690 has 32 divisors (see below), whose sum is σ = 3066678144. Its totient is φ = 509221440.

The previous prime is 1487987687. The next prime is 1487987719. The reversal of 1487987690 is 967897841.

It is a super-2 number, since 2×1487987690² = 4428214731183072200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18860 + ... + 57720.

It is an arithmetic number, because the mean of its divisors is an integer number (95833692).

Almost surely, 2^1487987690 is an apocalyptic number.

1487987690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1487987690 is an abundant number, since it is smaller than the sum of its proper divisors (1578690454).

1487987690 is a wasteful number, since it uses less digits than its factorization.

1487987690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39422.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The square root of 1487987690 is about 38574.4434826998. The cubic root of 1487987690 is about 1141.6503464258.

The spelling of 1487987690 in words is "one billion, four hundred eighty-seven million, nine hundred eighty-seven thousand, six hundred ninety".