97428477 has 8 divisors (see below), whose sum is σ = 130488064. Its totient is φ = 64660608.

The previous prime is 97428473. The next prime is 97428481. The reversal of 97428477 is 77482479.

It is an interprime number because it is at equal distance from previous prime (97428473) and next prime (97428481).

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

It is not a de Polignac number, because 97428477 - 2² = 97428473 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 (97428473) 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, 72148 + ... + 73485.

It is an arithmetic number, because the mean of its divisors is an integer number (16311008).

Almost surely, 2^97428477 is an apocalyptic number.

It is an amenable number.

97428477 is a deficient number, since it is larger than the sum of its proper divisors (33059587).

97428477 is a wasteful number, since it uses less digits than its factorization.

97428477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145859.

The product of its digits is 790272, while the sum is 48.

The square root of 97428477 is about 9870.5864567411. The cubic root of 97428477 is about 460.1456328428.

The spelling of 97428477 in words is "ninety-seven million, four hundred twenty-eight thousand, four hundred seventy-seven".