74620471 has 4 divisors (see below), whose sum is σ = 74708200. Its totient is φ = 74532744.

The previous prime is 74620459. The next prime is 74620499. The reversal of 74620471 is 17402647.

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

It is a cyclic number.

It is not a de Polignac number, because 74620471 - 2¹⁵ = 74587703 is a prime.

It is a super-3 number, since 3×74620471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74620411) 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, 42576 + ... + 44293.

It is an arithmetic number, because the mean of its divisors is an integer number (18677050).

Almost surely, 2^74620471 is an apocalyptic number.

74620471 is a deficient number, since it is larger than the sum of its proper divisors (87729).

74620471 is an equidigital number, since it uses as much as digits as its factorization.

74620471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87728.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 74620471 is about 8638.3141295047. The cubic root of 74620471 is about 421.0037801298.

The spelling of 74620471 in words is "seventy-four million, six hundred twenty thousand, four hundred seventy-one".