1487406021 has 16 divisors (see below), whose sum is σ = 2083153920. Its totient is φ = 942202800.

The previous prime is 1487406017. The next prime is 1487406023. The reversal of 1487406021 is 1206047841.

It is not a de Polignac number, because 1487406021 - 2² = 1487406017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1487406023) 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, 60961 + ... + 81798.

It is an arithmetic number, because the mean of its divisors is an integer number (130197120).

Almost surely, 2^1487406021 is an apocalyptic number.

It is an amenable number.

1487406021 is a deficient number, since it is larger than the sum of its proper divisors (595747899).

1487406021 is a wasteful number, since it uses less digits than its factorization.

1487406021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142936.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 1487406021 is about 38566.9031813549. The cubic root of 1487406021 is about 1141.5015662604.

The spelling of 1487406021 in words is "one billion, four hundred eighty-seven million, four hundred six thousand, twenty-one".