61407801 has 48 divisors (see below), whose sum is σ = 113253504. Its totient is φ = 32379264.

The previous prime is 61407793. The next prime is 61407809. The reversal of 61407801 is 10870416.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61407793) and next prime (61407809).

It is not a de Polignac number, because 61407801 - 2³ = 61407793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61407809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20725 + ... + 23501.

It is an arithmetic number, because the mean of its divisors is an integer number (2359448).

Almost surely, 2^61407801 is an apocalyptic number.

It is an amenable number.

61407801 is a deficient number, since it is larger than the sum of its proper divisors (51845703).

61407801 is a wasteful number, since it uses less digits than its factorization.

61407801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 61407801 is about 7836.3129723104. The cubic root of 61407801 is about 394.5249879356.

The spelling of 61407801 in words is "sixty-one million, four hundred seven thousand, eight hundred one".