61087299 has 32 divisors (see below), whose sum is σ = 105530880. Its totient is φ = 30523392.

The previous prime is 61087297. The next prime is 61087309. The reversal of 61087299 is 99278016.

It is not a de Polignac number, because 61087299 - 2¹ = 61087297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61087299.

It is not an unprimeable number, because it can be changed into a prime (61087297) 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, 702 + ... + 11075.

It is an arithmetic number, because the mean of its divisors is an integer number (3297840).

Almost surely, 2^61087299 is an apocalyptic number.

61087299 is a deficient number, since it is larger than the sum of its proper divisors (44443581).

61087299 is a wasteful number, since it uses less digits than its factorization.

61087299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 61087299 is about 7815.8364235698. The cubic root of 61087299 is about 393.8374169226.

The spelling of 61087299 in words is "sixty-one million, eighty-seven thousand, two hundred ninety-nine".