7820949098 has 4 divisors (see below), whose sum is σ = 11731423650. Its totient is φ = 3910474548.

The previous prime is 7820949067. The next prime is 7820949109. The reversal of 7820949098 is 8909490287.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5864036929 + 1956912169 = 76577^2 + 44237^2 .

It is a super-2 number, since 2×7820949098² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955237273 + ... + 1955237276.

Almost surely, 2^7820949098 is an apocalyptic number.

7820949098 is a deficient number, since it is larger than the sum of its proper divisors (3910474552).

7820949098 is a wasteful number, since it uses less digits than its factorization.

7820949098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910474551.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The square root of 7820949098 is about 88436.1300487533. The cubic root of 7820949098 is about 1984.9663696248.

The spelling of 7820949098 in words is "seven billion, eight hundred twenty million, nine hundred forty-nine thousand, ninety-eight".