61964031 has 8 divisors (see below), whose sum is σ = 87478704. Its totient is φ = 38879360.

The previous prime is 61964027. The next prime is 61964033. The reversal of 61964031 is 13046916.

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

It is a cyclic number.

It is not a de Polignac number, because 61964031 - 2² = 61964027 is a prime.

It is a super-2 number, since 2×61964031² = 7679082275537922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61964031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61964033) 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, 607440 + ... + 607541.

It is an arithmetic number, because the mean of its divisors is an integer number (10934838).

Almost surely, 2^61964031 is an apocalyptic number.

61964031 is a deficient number, since it is larger than the sum of its proper divisors (25514673).

61964031 is a wasteful number, since it uses less digits than its factorization.

61964031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215001.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 61964031 is about 7871.7235088639. The cubic root of 61964031 is about 395.7126077733.

The spelling of 61964031 in words is "sixty-one million, nine hundred sixty-four thousand, thirty-one".