2991097562 has 8 divisors (see below), whose sum is σ = 4498485600. Its totient is φ = 1491602364.

The previous prime is 2991097561. The next prime is 2991097579. The reversal of 2991097562 is 2657901992.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2991097562.

It is not an unprimeable number, because it can be changed into a prime (2991097561) 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, 1972262 + ... + 1973777.

It is an arithmetic number, because the mean of its divisors is an integer number (562310700).

Almost surely, 2^2991097562 is an apocalyptic number.

2991097562 is a deficient number, since it is larger than the sum of its proper divisors (1507388038).

2991097562 is a wasteful number, since it uses less digits than its factorization.

2991097562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946420.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 2991097562 is about 54690.9276022998. The cubic root of 2991097562 is about 1440.8215415615.

The spelling of 2991097562 in words is "two billion, nine hundred ninety-one million, ninety-seven thousand, five hundred sixty-two".