97470155 has 4 divisors (see below), whose sum is σ = 116964192. Its totient is φ = 77976120.

The previous prime is 97470101. The next prime is 97470179. The reversal of 97470155 is 55107479.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 97470155 - 2¹⁴ = 97453771 is a prime.

It is a super-2 number, since 2×97470155² = 19000862231448050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9747011 + ... + 9747020.

It is an arithmetic number, because the mean of its divisors is an integer number (29241048).

Almost surely, 2^97470155 is an apocalyptic number.

97470155 is a deficient number, since it is larger than the sum of its proper divisors (19494037).

97470155 is a wasteful number, since it uses less digits than its factorization.

97470155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19494036.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 97470155 is about 9872.6974530774. The cubic root of 97470155 is about 460.2112372611.

The spelling of 97470155 in words is "ninety-seven million, four hundred seventy thousand, one hundred fifty-five".