61413807 has 32 divisors (see below), whose sum is σ = 102860800. Its totient is φ = 32387040.

The previous prime is 61413787. The next prime is 61413811. The reversal of 61413807 is 70831416.

It is a happy number.

It is not a de Polignac number, because 61413807 - 2¹⁸ = 61151663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61413817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11082 + ... + 15672.

It is an arithmetic number, because the mean of its divisors is an integer number (3214400).

Almost surely, 2^61413807 is an apocalyptic number.

61413807 is a deficient number, since it is larger than the sum of its proper divisors (41446993).

61413807 is a wasteful number, since it uses less digits than its factorization.

61413807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628 (or 4614 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 61413807 is about 7836.6961788754. The cubic root of 61413807 is about 394.5378497099.

The spelling of 61413807 in words is "sixty-one million, four hundred thirteen thousand, eight hundred seven".