1067461987 has 4 divisors (see below), whose sum is σ = 1069636536. Its totient is φ = 1065287440.

The previous prime is 1067461939. The next prime is 1067462017. The reversal of 1067461987 is 7891647601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1067461987 - 2⁷ = 1067461859 is a prime.

It is a super-2 number, since 2×1067461987² = 2278950187379976338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1067461987.

It is not an unprimeable number, because it can be changed into a prime (1067461687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086538 + ... + 1087519.

It is an arithmetic number, because the mean of its divisors is an integer number (267409134).

Almost surely, 2^1067461987 is an apocalyptic number.

1067461987 is a deficient number, since it is larger than the sum of its proper divisors (2174549).

1067461987 is an equidigital number, since it uses as much as digits as its factorization.

1067461987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174548.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 1067461987 is about 32672.0367745875. The cubic root of 1067461987 is about 1021.9997890505. Note that the first 3 decimals are identical.

The spelling of 1067461987 in words is "one billion, sixty-seven million, four hundred sixty-one thousand, nine hundred eighty-seven".