97450991 has 8 divisors (see below), whose sum is σ = 109976400. Its totient is φ = 85536640.

The previous prime is 97450957. The next prime is 97450993. The reversal of 97450991 is 19905479.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97450991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97450993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152426 + ... + 153063.

It is an arithmetic number, because the mean of its divisors is an integer number (13747050).

Almost surely, 2^97450991 is an apocalyptic number.

97450991 is a deficient number, since it is larger than the sum of its proper divisors (12525409).

97450991 is a wasteful number, since it uses less digits than its factorization.

97450991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305529.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 97450991 is about 9871.7268499488. The cubic root of 97450991 is about 460.1810739555.

The spelling of 97450991 in words is "ninety-seven million, four hundred fifty thousand, nine hundred ninety-one".