61572097 has 8 divisors (see below), whose sum is σ = 62115840. Its totient is φ = 61031040.

The previous prime is 61572089. The next prime is 61572101. The reversal of 61572097 is 79027516.

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 61572097 - 2³ = 61572089 is a prime.

It is a super-2 number, since 2×61572097² = 7582246257954818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61572197) 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, 91153 + ... + 91825.

It is an arithmetic number, because the mean of its divisors is an integer number (7764480).

Almost surely, 2^61572097 is an apocalyptic number.

It is an amenable number.

61572097 is a deficient number, since it is larger than the sum of its proper divisors (543743).

61572097 is a wasteful number, since it uses less digits than its factorization.

61572097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 61572097 is about 7846.7889610974. The cubic root of 61572097 is about 394.8765239224.

The spelling of 61572097 in words is "sixty-one million, five hundred seventy-two thousand, ninety-seven".