97428475 has 6 divisors (see below), whose sum is σ = 120811340. Its totient is φ = 77942760.

The previous prime is 97428473. The next prime is 97428481. The reversal of 97428475 is 57482479.

It is not a de Polignac number, because 97428475 - 2¹ = 97428473 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 1948545 + ... + 1948594.

Almost surely, 2^97428475 is an apocalyptic number.

97428475 is a deficient number, since it is larger than the sum of its proper divisors (23382865).

97428475 is a wasteful number, since it uses less digits than its factorization.

97428475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897149 (or 3897144 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 97428475 is about 9870.5863554300. The cubic root of 97428475 is about 460.1456296942.

It can be divided in two parts, 97428 and 475, that added together give a triangular number (97903 = T₄₄₂).

The spelling of 97428475 in words is "ninety-seven million, four hundred twenty-eight thousand, four hundred seventy-five".