2987307091 has 32 divisors (see below), whose sum is σ = 3351605760. Its totient is φ = 2649563136.

The previous prime is 2987307019. The next prime is 2987307121. The reversal of 2987307091 is 1907037892.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2987307091 - 2¹¹ = 2987305043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2987302091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7524505 + ... + 7524901.

It is an arithmetic number, because the mean of its divisors is an integer number (104737680).

Almost surely, 2^2987307091 is an apocalyptic number.

2987307091 is a deficient number, since it is larger than the sum of its proper divisors (364298669).

2987307091 is a wasteful number, since it uses less digits than its factorization.

2987307091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 2987307091 is about 54656.2630537434. The cubic root of 2987307091 is about 1440.2126568331.

It can be divided in two parts, 2987 and 307091, that added together give a triangular number (310078 = T₇₈₇).

The spelling of 2987307091 in words is "two billion, nine hundred eighty-seven million, three hundred seven thousand, ninety-one".