61290907 has 8 divisors (see below), whose sum is σ = 63046256. Its totient is φ = 59540832.

The previous prime is 61290869. The next prime is 61290913. The reversal of 61290907 is 70909216.

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-61290907 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61290707) 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, 40588 + ... + 42070.

It is an arithmetic number, because the mean of its divisors is an integer number (7880782).

Almost surely, 2^61290907 is an apocalyptic number.

61290907 is a deficient number, since it is larger than the sum of its proper divisors (1755349).

61290907 is a wasteful number, since it uses less digits than its factorization.

61290907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 61290907 is about 7828.8509373982. The cubic root of 61290907 is about 394.2744937158.

It can be divided in two parts, 612 and 90907, that added together give a palindrome (91519).

The spelling of 61290907 in words is "sixty-one million, two hundred ninety thousand, nine hundred seven".