74762421 has 8 divisors (see below), whose sum is σ = 102898944. Its totient is φ = 48233760.

The previous prime is 74762417. The next prime is 74762437. The reversal of 74762421 is 12426747.

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

It is not a de Polignac number, because 74762421 - 2² = 74762417 is a prime.

It is a super-3 number, since 3×74762421³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74762411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401856 + ... + 402041.

It is an arithmetic number, because the mean of its divisors is an integer number (12862368).

Almost surely, 2^74762421 is an apocalyptic number.

It is an amenable number.

74762421 is a deficient number, since it is larger than the sum of its proper divisors (28136523).

74762421 is a wasteful number, since it uses less digits than its factorization.

74762421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803931.

The product of its digits is 18816, while the sum is 33.

The square root of 74762421 is about 8646.5265280342. The cubic root of 74762421 is about 421.2705685466.

The spelling of 74762421 in words is "seventy-four million, seven hundred sixty-two thousand, four hundred twenty-one".