618822898 has 8 divisors (see below), whose sum is σ = 940950108. Its totient is φ = 305172864.

The previous prime is 618822877. The next prime is 618822923. The reversal of 618822898 is 898228816.

It can be written as a sum of positive squares in 2 ways, for example, as 616379929 + 2442969 = 24827^2 + 1563^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119111 + ... + 2119402.

Almost surely, 2^618822898 is an apocalyptic number.

618822898 is a deficient number, since it is larger than the sum of its proper divisors (322127210).

618822898 is a wasteful number, since it uses less digits than its factorization.

618822898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238588.

The product of its digits is 884736, while the sum is 52.

The square root of 618822898 is about 24876.1511894425. The cubic root of 618822898 is about 852.1619236058.

The spelling of 618822898 in words is "six hundred eighteen million, eight hundred twenty-two thousand, eight hundred ninety-eight".