98991494 has 64 divisors (see below), whose sum is σ = 187564032. Its totient is φ = 38253600.

The previous prime is 98991481. The next prime is 98991499. The reversal of 98991494 is 49419989.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98991499) 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, 469049 + ... + 469259.

It is an arithmetic number, because the mean of its divisors is an integer number (2930688).

Almost surely, 2^98991494 is an apocalyptic number.

98991494 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

98991494 is a deficient number, since it is larger than the sum of its proper divisors (88572538).

98991494 is a wasteful number, since it uses less digits than its factorization.

98991494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its digits is 839808, while the sum is 53.

The square root of 98991494 is about 9949.4469193016. The cubic root of 98991494 is about 462.5932516132.

The spelling of 98991494 in words is "ninety-eight million, nine hundred ninety-one thousand, four hundred ninety-four".