61621402 has 8 divisors (see below), whose sum is σ = 92548512. Its totient is φ = 30771900.

The previous prime is 61621387. The next prime is 61621421. The reversal of 61621402 is 20412616.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17374 + ... + 20617.

It is an arithmetic number, because the mean of its divisors is an integer number (11568564).

Almost surely, 2^61621402 is an apocalyptic number.

61621402 is a deficient number, since it is larger than the sum of its proper divisors (30927110).

61621402 is a wasteful number, since it uses less digits than its factorization.

61621402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38804.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 61621402 is about 7849.9300633827. The cubic root of 61621402 is about 394.9818973705.

The spelling of 61621402 in words is "sixty-one million, six hundred twenty-one thousand, four hundred two".