98072261 has 4 divisors (see below), whose sum is σ = 112082592. Its totient is φ = 84061932.

The previous prime is 98072257. The next prime is 98072291. The reversal of 98072261 is 16227089.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98072261 - 2² = 98072257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98072231) 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, 7005155 + ... + 7005168.

It is an arithmetic number, because the mean of its divisors is an integer number (28020648).

Almost surely, 2^98072261 is an apocalyptic number.

It is an amenable number.

98072261 is a deficient number, since it is larger than the sum of its proper divisors (14010331).

98072261 is a wasteful number, since it uses less digits than its factorization.

98072261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010330.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 98072261 is about 9903.1439957218. The cubic root of 98072261 is about 461.1569193030.

The spelling of 98072261 in words is "ninety-eight million, seventy-two thousand, two hundred sixty-one".