71774461 has 4 divisors (see below), whose sum is σ = 78299424. Its totient is φ = 65249500.

The previous prime is 71774453. The next prime is 71774497. The reversal of 71774461 is 16447717.

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 not a de Polignac number, because 71774461 - 2³ = 71774453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71774461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71774401) 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, 3262465 + ... + 3262486.

It is an arithmetic number, because the mean of its divisors is an integer number (19574856).

Almost surely, 2^71774461 is an apocalyptic number.

It is an amenable number.

71774461 is a deficient number, since it is larger than the sum of its proper divisors (6524963).

71774461 is a wasteful number, since it uses less digits than its factorization.

71774461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524962.

The product of its digits is 32928, while the sum is 37.

The square root of 71774461 is about 8471.9809371835. The cubic root of 71774461 is about 415.5819213346.

The spelling of 71774461 in words is "seventy-one million, seven hundred seventy-four thousand, four hundred sixty-one".