97406550 has 72 divisors (see below), whose sum is σ = 271425336. Its totient is φ = 25971840.

The previous prime is 97406531. The next prime is 97406599. The reversal of 97406550 is 5560479.

97406550 = T₂₇₇₉ + T₂₇₈₀ + ... + T₂₈₀₃.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8142 + ... + 16158.

Almost surely, 2^97406550 is an apocalyptic number.

97406550 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 97406550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135712668).

97406550 is an abundant number, since it is smaller than the sum of its proper divisors (174018786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97406550 is a wasteful number, since it uses less digits than its factorization.

97406550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044 (or 8027 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 97406550 is about 9869.4756699634. The cubic root of 97406550 is about 460.1111105258. Note that the first 5 decimals are identical.

It can be divided in two parts, 9740 and 6550, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 97406550 in words is "ninety-seven million, four hundred six thousand, five hundred fifty".