61370691 has 8 divisors (see below), whose sum is σ = 82056960. Its totient is φ = 40799112.

The previous prime is 61370677. The next prime is 61370707. The reversal of 61370691 is 19607316.

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

It is not a de Polignac number, because 61370691 - 2¹⁰ = 61369667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61370651) 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, 27415 + ... + 29568.

It is an arithmetic number, because the mean of its divisors is an integer number (10257120).

Almost surely, 2^61370691 is an apocalyptic number.

61370691 is a deficient number, since it is larger than the sum of its proper divisors (20686269).

61370691 is a wasteful number, since it uses less digits than its factorization.

61370691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57345.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 61370691 is about 7833.9447917381. The cubic root of 61370691 is about 394.4454987269.

The spelling of 61370691 in words is "sixty-one million, three hundred seventy thousand, six hundred ninety-one".