616040461 has 4 divisors (see below), whose sum is σ = 616104000. Its totient is φ = 615976924.

The previous prime is 616040443. The next prime is 616040479. The reversal of 616040461 is 164040616.

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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (616040443) and next prime (616040479).

It is a cyclic number.

It is not a de Polignac number, because 616040461 - 2¹¹ = 616038413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616040431) 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, 13861 + ... + 37738.

It is an arithmetic number, because the mean of its divisors is an integer number (154026000).

Almost surely, 2^616040461 is an apocalyptic number.

It is an amenable number.

616040461 is a deficient number, since it is larger than the sum of its proper divisors (63539).

616040461 is a wasteful number, since it uses less digits than its factorization.

616040461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63538.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 616040461 is about 24820.1623886710. The cubic root of 616040461 is about 850.8828018442.

The spelling of 616040461 in words is "six hundred sixteen million, forty thousand, four hundred sixty-one".