98278897 has 4 divisors (see below), whose sum is σ = 101449216. Its totient is φ = 95108580.

The previous prime is 98278891. The next prime is 98278903. The reversal of 98278897 is 79887289.

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 an interprime number because it is at equal distance from previous prime (98278891) and next prime (98278903).

It is a cyclic number.

It is not a de Polignac number, because 98278897 - 2¹⁵ = 98246129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98278891) 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, 1585113 + ... + 1585174.

It is an arithmetic number, because the mean of its divisors is an integer number (25362304).

Almost surely, 2^98278897 is an apocalyptic number.

It is an amenable number.

98278897 is a deficient number, since it is larger than the sum of its proper divisors (3170319).

98278897 is a wasteful number, since it uses less digits than its factorization.

98278897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170318.

The product of its digits is 4064256, while the sum is 58.

The square root of 98278897 is about 9913.5713544615. The cubic root of 98278897 is about 461.4805744416.

The spelling of 98278897 in words is "ninety-eight million, two hundred seventy-eight thousand, eight hundred ninety-seven".