97429291 has 4 divisors (see below), whose sum is σ = 97939584. Its totient is φ = 96919000.

The previous prime is 97429273. The next prime is 97429309. The reversal of 97429291 is 19292479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19292479 = 1433 ⋅13463.

It is an interprime number because it is at equal distance from previous prime (97429273) and next prime (97429309).

It is a cyclic number.

It is not a de Polignac number, because 97429291 - 2¹¹ = 97427243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97429691) 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, 254860 + ... + 255241.

It is an arithmetic number, because the mean of its divisors is an integer number (24484896).

Almost surely, 2^97429291 is an apocalyptic number.

97429291 is a deficient number, since it is larger than the sum of its proper divisors (510293).

97429291 is a wasteful number, since it uses less digits than its factorization.

97429291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510292.

The product of its digits is 81648, while the sum is 43.

The square root of 97429291 is about 9870.6276902738. The cubic root of 97429291 is about 460.1469143213.

The spelling of 97429291 in words is "ninety-seven million, four hundred twenty-nine thousand, two hundred ninety-one".