61767401 has 8 divisors (see below), whose sum is σ = 62333064. Its totient is φ = 61204480.

The previous prime is 61767379. The next prime is 61767403. The reversal of 61767401 is 10476716.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21114025 + 40653376 = 4595^2 + 6376^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61767401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61767403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96041 + ... + 96681.

It is an arithmetic number, because the mean of its divisors is an integer number (7791633).

Almost surely, 2^61767401 is an apocalyptic number.

It is an amenable number.

61767401 is a deficient number, since it is larger than the sum of its proper divisors (565663).

61767401 is a wasteful number, since it uses less digits than its factorization.

61767401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 61767401 is about 7859.2239438764. The cubic root of 61767401 is about 395.2935936143.

The spelling of 61767401 in words is "sixty-one million, seven hundred sixty-seven thousand, four hundred one".