74311477 has 4 divisors (see below), whose sum is σ = 75206880. Its totient is φ = 73416076.

The previous prime is 74311463. The next prime is 74311507. The reversal of 74311477 is 77411347.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74311477 is a prime.

It is a super-2 number, since 2×74311477² = 11044391227843058, which contains 22 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 (74314477) 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, 447577 + ... + 447742.

It is an arithmetic number, because the mean of its divisors is an integer number (18801720).

Almost surely, 2^74311477 is an apocalyptic number.

It is an amenable number.

74311477 is a deficient number, since it is larger than the sum of its proper divisors (895403).

74311477 is an equidigital number, since it uses as much as digits as its factorization.

74311477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895402.

The product of its digits is 16464, while the sum is 34.

The square root of 74311477 is about 8620.4104890661. The cubic root of 74311477 is about 420.4218682524.

The spelling of 74311477 in words is "seventy-four million, three hundred eleven thousand, four hundred seventy-seven".