1616074987 has 2 divisors, whose sum is σ = 1616074988. Its totient is φ = 1616074986.

The previous prime is 1616074951. The next prime is 1616074991. The reversal of 1616074987 is 7894706161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616074987 is a prime.

It is a super-2 number, since 2×1616074987² = 5223396727214100338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616074987.

It is not a weakly prime, because it can be changed into another prime (1616071987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808037493 + 808037494.

It is an arithmetic number, because the mean of its divisors is an integer number (808037494).

Almost surely, 2^1616074987 is an apocalyptic number.

1616074987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616074987 is an equidigital number, since it uses as much as digits as its factorization.

1616074987 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1616074987 is about 40200.4351593363. The cubic root of 1616074987 is about 1173.5110125442.

The spelling of 1616074987 in words is "one billion, six hundred sixteen million, seventy-four thousand, nine hundred eighty-seven".